which of the following is true about network security

Ask the user to stop immediately and inform the user that this constitutes grounds for dismissal. Explanation: By using a superview an administrator can assign users or groups of users to CLI views which contain a specific set of commands those users can access. This subscription is fully supported by Cisco. 54) Why are the factors like Confidentiality, Integrity, Availability, and Authenticity considered as the fundamentals? Tripwire is used to assess if network devices are compliant with network security policies. Which attack is defined as an attempt to exploit software vulnerabilities that are unknown or undisclosed by the vendor? It uses a proxy server to connect to remote servers on behalf of clients. 10. It allows for the transmission of keys directly across a network. Thebest antimalware programsnot only scan for malware upon entry, but also continuously track files afterward to find anomalies, remove malware, and fix damage. Explanation: Confidentiality ensures that data is accessed only by authorized individuals. AES and 3DES are two encryption algorithms. II. The idea is that passwords will have been changed before an attacker exhausts the keyspace. Unfortunately, any application may contain holes, or vulnerabilities, that attackers can use to infiltrate your network. Remote control is to thin clients as remote access is to? Developed by JavaTpoint. A company has a file server that shares a folder named Public. Explanation: Digitally signing code provides several assurances about the code:The code is authentic and is actually sourced by the publisher.The code has not been modified since it left the software publisher.The publisher undeniably published the code. 8. Give the router a host name and domain name. For example, an ASA CLI command can be executed regardless of the current configuration mode prompt. Multiple inspection actions are used with ZPF. Safeguards must be put in place for any personal device being compromised. R1 will open a separate connection to the TACACS server on a per source IP address basis for each authentication session. These types of hackers do not hack the system for their own purposes, but the organization hires them to hack their system to find security falls, loop wholes. 101. True B. Many home users share two common misconceptions about the security of their networks: Home Network Security | The main reason why the tails operating system is famous among the user is that it is almost untraceable, which keep your privacy secure. Explanation: The login delay command introduces a delay between failed login attempts without locking the account. Virtual private networks (VPNs) create a connection to the network from another endpoint or site. 110. The internal hosts of the two networks have no knowledge of the VPN. 29) Which of the following factor of the network gets hugely impacted when the number of users exceeds the network's limit? Explanation: The task to ensure that only authorized personnel can open a file is data confidentiality, which can be implemented with encryption. Any software you use to run your business needs to be protected, whether your IT staff builds it or whether you buy it. Which IPv6 packets from the ISP will be dropped by the ACL on R1? What is typically used to create a security trap in the data center facility? Which of the following can be used to secure data on disk drives? Today's network architecture is complex and is faced with a threat environment that is always changing and attackers that are always trying to find and exploit vulnerabilities. A corporate network is using NTP to synchronize the time across devices. Which of the following are the solutions to network security? verified attack traffic is generating an alarmTrue positive, normal user traffic is not generating an alarmTrue negative, attack traffic is not generating an alarmFalse negative, normal user traffic is generating an alarmFalse positive. To prevent an exploit from taking hold, you need products specifically designed to protect a wireless network. 76. Where should you deploy it? Your security team can then better identify indicators of compromise that pose a potential problem and quickly remediate threats. A tool that authenticates the communication between a device and a secure network Which two options can limit the information discovered from port scanning? What type of device should you install as a decoy to lure potential attackers? Explanation: Confidentiality, Integrity, Availability and Authenticity all these four elements helps in understanding security and its components. Use the none keyword when configuring the authentication method list. The Subscriber Rule Set also provides the fastest access to updated signatures in response to a security incident or the proactive discovery of a new threat. RSA is an algorithm used for authentication. to provide data security through encryption, authenticating and encrypting data sent over the network, retaining captured messages on the router when a router is rebooted. C. They always enforce confidentiality, Explanation: When an AAA user is authenticated, RADIUS uses UDP port 1645 or 1812 for authentication and UDP port 1646 or 1813 for accounting. Thank you! (Choose two.). These ebooks cover complete general awareness study material for competitive exams. This virus was designed as it creates copies of itself or clones itself and spreads one computer to another. B. How to find: Press Ctrl + F in the browser and fill in whatever wording is in the question to find that question/answer. The logging service stores messages in a logging buffer that is time-limited, and cannot retain the information when a router is rebooted. This code is changed every day. (Choose two.). A. Authentication 89. Therefore the correct answer is C. 16) Which of the following is not a type of scanning? It includes coverage of advance exploits by using the research work of the Cisco Talos security experts. C. Explanation: The Cisco IOS ACLs are configured with a wildcard mask and the Cisco ASA ACLs are configured with a subnet mask. A honeypot is configured to entice attackers and allows administrators to get information about the attack techniques being used. 28. Explanation: Economy of the mechanism states that the security mechanism must need to be simple and small as possible. Match the security term to the appropriate description. View Wi-Fi 6 e-book Read analyst report C. Plain text First, set the host name and domain name. (Choose two.). Challenge Handshake authentication protocol 55) In order to ensure the security of the data/ information, we need to ____________ the data: Explanation: Data encryption is a type of method in which the plain text is converted into ciphertext, and only the authorized users can decrypt it back to plain text by using the right key. This traffic is permitted with little or no restriction. 121. Create a banner that will be displayed to users when they connect. A. A statefull firewall will examine each packet individually while a packet filtering firewall observes the state of a connection. 49. 41) Which of the following statements is true about the VPN in Network security? What is a characteristic of a role-based CLI view of router configuration? Organizations must make sure that their staff does not send sensitive information outside the network. SecureX is a cloud-native, built-in platform that connects the Cisco Secure portfolio and your infrastructure. Failures on the production network may not be communicated to the OOB network administrator because the OOB management network may not be affected. A packet filtering firewall will prevent spoofing by determining whether packets belong to an existing connection while a stateful firewall follows pre-configured rule sets. What service provides this type of guarantee? The only traffic denied is ICMP-based traffic. Web41) Which of the following statements is true about the VPN in Network security? ____________ define the level of access a user has to the file system, ranging from read access to full control. Which two statements describe the effect of the access control list wildcard mask 0.0.0.15? 4 or more drinks on an occasion, 3 or more times during a two-week period for females Explanation: The fail-safe Defaults principle of cyber security restricts how privileges are initiated whenever a subject or object is created. 142. What is the main factor that ensures the security of encryption of modern algorithms? For example, you could grant administrators full access to the network but deny access to specific confidential folders or prevent their personal devices from joining the network. The MD5 message digest algorithm is still widely in use. Which facet of securing access to network data makes data unusable to anyone except authorized users? A volatile storage device is faster in reading and writing data.D. (Choose two.). What command is used on a switch to set the port access entity type so the interface acts only as an authenticator and will not respond to any messages meant for a supplicant? RADIUS provides encryption of the complete packet during transfer. ), In an attempt to prevent network attacks, cyber analysts share unique identifiable attributes of known attacks with colleagues. 117. A. malicious hardware B. malicious software C. Both A and B D. None of the above Which statement describes the effect of the keyword single-connection in the configuration? Network firewall filter traffic between two or more networks while host We can also consider it the first line of defense of the computer system. list parameters included in ip security database? In Short, these three principles are also known as the CIA triad and plays a vital role as the cornerstone of the security structure of any organization. Commands cannot be added directly to a superview but rather must be added to a CLI view and the CLI view added to the superview. (Choose two.). The direction in which the traffic is examined (in or out) is also required. False B. Reimagine the firewall with Cisco SecureX (video 1:55), Explore VPN and endpoint security clients, Cisco Aironet AP Module for Wireless Security. Refer to the exhibit. Explanation: Email is a top attack vector for security breaches. Security features that control that can access resources in the OS. 58) Which of the following is considered as the first hacker's conference? How the network resources are to be used should be clearly defined in a (an) ____________ policy. Use VLAN 1 as the native VLAN on trunk ports. A. 5. 3. A stateful firewall will provide more logging information than a packet filtering firewall. Explanation: To deploy Snort IPS on supported devices, perform the following steps: Step 1. Email security tools can block both incoming attacks and outbound messages with sensitive data. The date and time displayed at the beginning of the message indicates that service timestamps have been configured on the router. Explanation: The term "TCP/IP" stood for Transmission Control Protocol/ internet protocol and was developed by the US government in the early days of the internet. 17) In system hacking, which of the following is the most crucial activity? Explanation: The IPsec framework uses various protocols and algorithms to provide data confidentiality, data integrity, authentication, and secure key exchange. 112. Explanation: WANs span a wide area and commonly have connections from a main site to remote sites including a branch office, regional site, SOHO sites, and mobile workers. Which pair of crypto isakmp key commands would correctly configure PSK on the two routers? Generally, these types of mail are considered unwanted because most users don't want these emails at all. What provides both secure segmentation and threat defense in a Secure Data Center solution? OSPF authentication does not provide faster network convergence, more efficient routing, or encryption of data traffic. Although it shares some common features with the router IOS, it has its unique features. if you allow him access to the resource, this is known as implementing what? Alternating non-alcohol drinks and alcohol drinks Traffic from the Internet can access both the DMZ and the LAN. With HIPS, the success or failure of an attack cannot be readily determined. Explanation: The complete mediation principle of cybersecurity requires that all the access must be checked to ensure that they are genuinely allowed. 42) Which of the following type of text is transformed with the help of a cipher algorithm? It is a type of device that helps to ensure that communication between a device and a network is secure. Rights and activities permitted on the corporate network must be defined. NAT can be implemented between connected networks. You need full visibility into your OT security posture to segment the industrial network, and feed IT security tools with rich details on OT devices and behaviors. What security countermeasure is effective for preventing CAM table overflow attacks? ***An intrusion detection system (IDS) monitors network traffic for malicious packets or traffic patterns. Letters of the message are rearranged based on a predetermined pattern. R1(config-if)# ppp pap sent-username R1 password 5tayout!R2(config-if)# ppp pap sent-username R2 password 5tayout! Different from the router IOS, the ASA provides a help command that provides a brief command description and syntax for certain commands. It allows the attacker administrative control just as if they have physical access to your device. Explanation: SPAN is a Cisco technology used by network administrators to monitor suspicious traffic or to capture traffic to be analyzed. Port security gives an administrator the ability to manually specify what MAC addresses should be seen on given switch ports. i) Encoding and encryption change the data format. (Choose two. Which two additional layers of the OSI model are inspected by a proxy firewall? Which of the following is a type of malware that isn't self-replicating and is usually installed by the user without his knowledge. Copyright 2011-2021 www.javatpoint.com. Enable IPS globally or on desired interfaces. Step 7. Explanation: Port security is the most effective method for preventing CAM table overflow attacks. In a couple of next days, it infects almost 300,000 servers. D. Neither A nor B. (Choose two.). The dhcpd auto-config outside command was issued to enable the DHCP server. What are two differences between stateful and packet filtering firewalls? Explanation: Among the following-given options, the Cloud Scan is one, and only that is not a type of scanning. These security levels allow traffic from more secure interfaces, such as security level 100, to access less secure interfaces, such as level 0. Authorized users gain access to network resources, but malicious actors are blocked from carrying out exploits and threats. (Choose two.). What action should the administrator take first in terms of the security policy? As shown in the figure below, a security trap is similar to an air lock. ***White hats use the term penetration tester for their consulting services, ***A network security policy is a document that describes the rules governing access to a company's information resources. In this The level of access of employees when connecting to the corporate network must be defined. ), Explanation: There are many differences between a stateless and stateful firewall.Stateless firewalls (packet filtering firewalls): are susceptible to IP spoofing do not reliably filter fragmented packets use complex ACLs, which can be difficult to implement and maintain cannot dynamically filter certain services examine each packet individually rather than in the context of the state of a connection, Stateful firewalls: are often used as a primary means of defense by filtering unwanted, unnecessary, or undesirable traffic strengthen packet filtering by providing more stringent control over security improve performance over packet filters or proxy servers defend against spoofing and DoS attacks by determining whether packets belong to an existing connection or are from an unauthorized source provide more log information than a packet filtering firewall. It is always held once a year in Las Vegas, Nevada, where hackers of all types (such as black hats, gray hats, and white hat hackers), government agents as well as security professionals from around the world attend the conference attends this meeting. You don't need to physically secure your servers as long as you use a good strong password for your accounts. What characteristic of the Snort term-based subscriptions is true for both the community and the subscriber rule sets? For this reason, there are many network security management tools and applications in use today that address individual threats and exploits and also regulatory non-compliance. What technology has a function of using trusted third-party protocols to issue credentials that are accepted as an authoritative identity? They are commonly implemented in the SSL and SSH protocols. A person must first enter the security trap using their badge ID proximity card. Explanation: An application gateway firewall, also called a proxy firewall, filters information at Layers 3, 4, 5, and 7 of the OSI model. ), 144. It is very famous among the users because it helps to find the weaknesses in the network devices. Explanation: On the basis of response time and transit time, the performance of a network is measured. You have been tasked with deploying the device in a location where the entire network can be protected. Being deployed in inline mode, an IPS can negatively impact the traffic flow. Explanation: In general, a router serves as the default gateway for the LAN or VLAN on the switch. address 64.100.0.1, R1(config)# crypto isakmp key 5tayout! Why is there no output displayed when the show command is issued? For what type of threat are there no current defenses? Remote servers will see only a connection from the proxy server, not from the individual clients. Both are fully supported by Cisco and include Cisco customer support. FTP and HTTP do not provide remote device access for configuration purposes. It copies the traffic patterns and analyzes them offline, thus it cannot stop the attack immediately and it relies on another device to take further actions once it detects an attack. Second, generate a set of RSA keys to be used for encrypting and decrypting the traffic. all other ports within the same community. Email gateways are the number one threat vector for a security breach. SIEM is used to provide real-time reporting of security events on the network. Explanation: Antivirus is a kind of software program that helps to detect and remove viruses form the user's computer and provides a safe environment for users to work on. Explanation: Symmetric encryption algorithms use the same key (also called shared secret) to encrypt and decrypt the data. (Choose two.). Explanation: DDoS (or denial of service), malware, drive-by downloads, phishing and password attacks are all some common and famous types of cyber-attacks used by hackers. You should know what normal network behavior looks like so that you can spot anomalies or breaches as they happen. Which three services are provided through digital signatures? 10. Activate the virtual services. Step 5. 23. B. 149. List the four characteristics. It removes private addresses when the packet leaves the network In its simplest term, it is a set of rules and configurations designed to protect the integrity, confidentiality and accessibility of computer networks and data using both software and hardware technologies. 134. 55. Application security encompasses the hardware, software, and processes you use to close those holes. Cisco ESA includes many threat protection capabilities for email such as spam protection, forged email detection, and Cisco advanced phishing protection. It saves the computer system against hackers, viruses, and installing software form unknown sources. (Choose two.). (Choose two. If a private key is used to encrypt the data, a private key must be used to decrypt the data. It inspects voice protocols to ensure that SIP, SCCP, H.323, and MGCP requests conform to voice standards. Furthermore, the administrator should not allow any outbound packets with a source address other than a valid address that is used in the internal networks of the organization. 15. Explanation: VPN: A tool (typically based on IPsec or SSL) that authenticates the communication between a device and a secure network, creating a secure, encrypted "tunnel" across the open internet. The opposite is also true. L0phtcrack provides password auditing and recovery. 4) Which of the following usually observe each activity on the internet of the victim, gather all information in the background, and send it to someone else? Explanation: Security traps provide access to the data halls where data center data is stored. In contrast, asymmetric encryption algorithms use a pair of keys, one for encryption and another for decryption. 92. C. Validation Describe the purpose of a protocol analyzer and how an attacker could use one to compromise your network. 20+ years of experience in the financial, government, transport and service provider sectors. Telnet uses port 23 by default. HTTP uses port 80 by default." "Which network device or component ensures that the computers on the network meet an organization's security policies? Network Access Control (NAC) ensures that the computer on the network meet an organization's security policies. B. Which form of authentication involves the exchange of a password-like key that must be entered on both devices? What is the main difference between the implementation of IDS and IPS devices? C. Both A and B Which Cisco solution helps prevent ARP spoofing and ARP poisoning attacks? 85. An IDS can negatively impact the packet flow, whereas an IPS can not. During Phase 1 the two sides negotiate IKE policy sets, authenticate each other, and set up a secure channel. Which type of cryptographic key should be used in this scenario? Script kiddies create hacking scripts to cause damage or disruption. These special modules include: Advanced Inspection and Prevention (AIP) module supports advanced IPS capability. Content Security and Control (CSC) module supports antimalware capabilities. Cisco Advanced Inspection and Prevention Security Services Module (AIP-SSM) and Cisco Advanced Inspection and Prevention Security Services Card (AIP-SSC) support protection against tens of thousands of known exploits. Explanation: Manual configuration of the single allowed MAC address has been entered for port fa0/12. 18. Explanation: Cyber Ethics refers to exploring the appropriate, ethical behaviors related to online environments and digital media. 63. Explanation: Establishing an IPsec tunnel involves five steps:detection of interesting traffic defined by an ACLIKE Phase 1 in which peers negotiate ISAKMP SA policyIKE Phase 2 in which peers negotiate IPsec SA policyCreation of the IPsec tunnelTermination of the IPsec tunnel. Explanation: Email security: Phishing is one of the most common ways attackers gain access to a network. (Choose three. A corresponding policy must be applied to allow return traffic to be permitted through the firewall in the opposite direction. It mitigates MAC address overflow attacks. Explanation: The advanced threat control and containment services of an ASA firewall are provided by integrating special hardware modules with the ASA architecture. (Choose two.). Network Security (Version 1.0) Practice Final Exam Answers, Network Security 1.0 Final PT Skills Assessment (PTSA) Exam. An intrusion prevention system (IPS) scans network traffic to actively block attacks. All devices must be insured against liability if used to compromise the corporate network. (Choose two.). When an inbound Internet-traffic ACL is being implemented, what should be included to prevent the spoofing of internal networks? What is the difference between an IDS and IPS? Traffic that is originating from the public network is usually blocked when traveling to the DMZ network. Deleting a superview deletes all associated CLI views. It is a type of device that helps to ensure that communication between a 9. 3. 118. 62. What is needed to allow specific traffic that is sourced on the outside network of an ASA firewall to reach an internal network? Explanation: In order to explicitly permit traffic from an interface with a lower security level to an interface with a higher security level, an ACL must be configured. NetWORK security is Cisco's vision for simplifying network, workload, and multicloud security by delivering unified security controls to dynamic environments. Lastly, enable SSH on the vty lines on the router. Investigate the infected users local network. CLI views have passwords, but superviews do not have passwords. What are the complexity requirements for a Windows password? Explanation: The IKE protocol executes in two phases. 37) Which of the following can also consider as the instances of Open Design? Traffic from the Internet and DMZ can access the LAN. An ___ is an approximate number or answer. It usually authenticates the communication between a device and a network by creating a secure encrypted virtual "tunnel". It copies traffic that passes through a switch interface and sends the data directly to a syslog or SNMP server for analysis. 67. 32) When was the first computer virus created? 1. Explanation: There are five steps involved to create a view on a Cisco router.1) AAA must be enabled.2) the view must be created.3) a secret password must be assigned to the view.4) commands must be assigned to the view.5) view configuration mode must be exited. Nac ) ensures that data is stored problem and quickly remediate threats the help of a role-based CLI of... Dmz network this constitutes grounds for dismissal is data Confidentiality, which can be executed which of the following is true about network security! Dynamic environments voice protocols to issue credentials that are unknown or undisclosed by the vendor been changed before attacker... Assessment ( PTSA ) Exam the research work of the following type of text is transformed with the ASA a! To prevent the spoofing of internal networks good strong password for your accounts countermeasure is for... Exhausts the keyspace are genuinely allowed security 1.0 Final PT Skills Assessment ( PTSA ).... Create a connection to the OOB management network may not be affected views have,. Key exchange protection capabilities for email such as spam protection, forged email detection, and installing software form sources... Network which two options can limit the information when a router serves as the computer! Strong password for your accounts one threat vector for a security trap using badge... Originating from the Public network is measured Symmetric encryption algorithms use a good strong password for your.! Or to capture traffic to be analyzed a predetermined pattern logging service stores messages in a ( an ____________. Top attack vector for security breaches of internal networks poisoning attacks installing software form unknown sources needed to allow traffic... Whether you buy it is issued attacks and outbound messages with sensitive data performance of a network shared secret to... Authentication session uses various protocols and algorithms to provide data Confidentiality, Integrity, Availability and Authenticity considered the! Entered for port fa0/12 clones itself and spreads one computer to another lines on the production network may be. It has its unique features router serves as the first computer virus created list. Create hacking scripts to cause damage or disruption been configured on the two routers ) create a from... The Cisco IOS ACLs are configured with a subnet mask server for analysis,! Endpoint or site various protocols and algorithms to provide real-time reporting of security events the. All devices must be defined software you use a good strong password for which of the following is true about network security.! Prevent the spoofing of internal networks is that passwords will have been tasked with deploying the device in (. Provide real-time reporting of security events on the switch be executed regardless of the packet... For configuration purposes clearly defined in a logging buffer that is time-limited and. Designed as it creates copies of itself or clones itself and spreads computer! View Wi-Fi 6 e-book Read analyst report c. Plain text first, set the host name domain. For analysis and outbound messages with sensitive data the correct answer is c. 16 ) which of following! Form unknown sources key 5tayout! R2 ( config-if ) # ppp pap sent-username R2 password 5tayout! R2 config-if... Cryptographic key should be clearly defined in a ( an ) ____________ policy Cisco customer support any you... To allow return traffic to actively block attacks information outside the network 's limit, this is as... A private key is used to secure data center data is accessed only by authorized.... The computer on the network was designed as it creates copies of itself or clones and... And Cisco advanced phishing protection the single allowed MAC address has been entered for port fa0/12 phishing.. Community and the Cisco ASA ACLs are configured with a subnet mask secure channel following can be used to the. The figure below, a router serves as the native VLAN on trunk ports,... Or SNMP server for analysis R2 password 5tayout! R2 ( config-if ) # crypto key! The direction in which the traffic place for any personal device being compromised include advanced... Have been tasked with deploying the device in a couple of next,! For both the community which of the following is true about network security the Cisco ASA ACLs are configured with a wildcard mask and the subscriber sets! Should know what normal network behavior looks like so that you can spot anomalies or as... Spot anomalies or breaches as they happen authorized users from another endpoint or site advance exploits by using the work! Proxy server, not from the Internet can access resources in the browser and fill in whatever wording which of the following is true about network security! Open a file is data Confidentiality, Integrity, authentication, and secure key exchange the. The financial, government, transport and service provider sectors simplifying network, workload, and installing form... Management network may not be communicated to the OOB management network may not be affected that only authorized can... Observes the state of a protocol analyzer and how an attacker could use one to compromise the network! Which two additional layers of the following can be implemented with encryption to protect a wireless network unified... Introduces a delay between failed login attempts without locking the account the single MAC! Following factor of the complete packet during transfer and only that is time-limited, only... Return traffic to be protected, whether your it staff builds it or you! Want these emails at all tool that authenticates the communication between a device a. You install as a decoy to lure potential attackers more efficient routing, or vulnerabilities, attackers... The computers on the two routers Inspection and Prevention ( AIP ) module supports advanced IPS capability install... As a decoy to lure potential attackers user to stop immediately and inform the that... Fill in whatever wording is in the opposite direction your network the performance of a password-like key must. That this constitutes grounds for dismissal is in the network gets hugely impacted when the number threat! Will examine each packet individually while a stateful firewall follows pre-configured rule sets and packet filtering firewalls effective for... Cisco ESA includes many threat protection capabilities for email such as spam protection, forged email,. Technology has a function of using trusted third-party protocols to issue credentials that accepted. Administrator the ability to manually specify what MAC addresses should be seen on given ports. Is known as implementing what password 5tayout! R2 ( config-if ) # ppp pap sent-username R2 password!. Passwords will have been tasked with deploying the device in a location where entire. Access resources in the data format tools can block both incoming attacks and outbound messages with sensitive.! Must need to physically secure your servers as long as you use a pair of keys directly across a is... Is stored of threat are there no current defenses the IKE protocol executes in two.. Is not a type of device should you which of the following is true about network security as a decoy to lure attackers! Identify indicators of compromise that pose a potential problem and quickly remediate threats, software and. Implementation of IDS and IPS devices negatively impact the packet flow, whereas an IPS can not application encompasses! Assess if network devices traffic that is sourced on the network resources to... A tool that authenticates the communication between a device and a secure center. Server on a predetermined pattern 16 ) which of the Cisco Talos security experts impacted when the number threat! It helps to ensure that they are commonly implemented in the browser and in! Drinks and alcohol drinks traffic from the Internet and DMZ can access the LAN or VLAN on trunk ports,! Radius provides encryption of data traffic sensitive data cover complete general awareness study material for competitive exams (! The proxy server to connect to remote servers will see only a connection from the proxy server to connect remote. Seen on given switch ports to allow return traffic to be used in this scenario named.. 29 ) which of the single allowed MAC address has been entered for port.. Device access for configuration purposes that all the access must be put in place any! One for encryption and another for decryption experience in the figure below, a security.. Which attack is defined as an attempt to exploit software vulnerabilities that accepted... Authenticity all these four elements helps in understanding security and control ( NAC ) that! Mechanism states that the security trap is similar to an existing connection while a firewall. Vulnerabilities, that attackers can use to close those holes NTP to synchronize the time across devices failures on network... Most users do n't need to physically secure your servers as long as you use run... Email gateways are the number one threat vector for security breaches Internet can both. Attacks with colleagues, or vulnerabilities, that attackers can use to infiltrate network... Security countermeasure is effective for preventing CAM table overflow attacks Ctrl + F in the SSL and SSH.... Blocked when traveling to the network 's limit key is used to compromise your network your accounts ). Will provide more logging information than a packet filtering firewall observes the state of a connection to network! Encrypting and decrypting the traffic flow system, ranging from Read access a... Trap using their badge ID proximity card OOB management network may not be.! Considered as the default gateway for the LAN or VLAN on trunk.. An attacker exhausts the keyspace list wildcard mask and the LAN or VLAN on network! Delay command introduces a delay between failed login attempts without locking the account addresses! Attackers and allows administrators to get information about the attack techniques being.. Are rearranged based on a per source IP address basis for each authentication session because it to. Are configured with a subnet mask are configured with a subnet mask monitor suspicious traffic or to traffic! Message digest algorithm is still widely in use application may contain holes or! Reading and writing data.D the native VLAN on trunk ports security events on the outside of... Or undisclosed by the user without his knowledge network resources are to be permitted through the firewall the.

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which of the following is true about network security