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BCA Cyber Security Network Security — practice questions

Explore 26 free Network Security questions in BCA Cyber Security Cybersecurity. Open each question or exercise to read its content, reference answers and available explanation.

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Network Security questions and exercises with answers

Showing questions 1–26 of 26.

Addresses at the network layer are referred to as:Read the answer and worked solution →TCP and UDP are commonly used protocols at which layer?Read the answer and worked solution →Which is the fundamental network layer protocol for TCP/IP?Read the answer and worked solution →At one time, most firewalls were deployed at network:Read the answer and worked solution →In its most basic form, a packet filtering firewall operates at which layer?Read the answer and worked solution →Firewall software should be patched when vendors provide updates addressing:Read the answer and worked solution →Traffic not expressly permitted by the firewall policy should generally be:Read the answer and worked solution →Firewalls that examine more layers can perform examinations that are more:Read the answer and worked solution →Network address translation is described as actually being which technology?Read the answer and worked solution →Stateful inspection works by adding greater awareness of which layer?Read the answer and worked solution →Firewall rulesets should be as specific as possible with regard to the:Read the answer and worked solution →Firewall performance can often be improved by doing what to rulesets?Read the answer and worked solution →What does a stateful firewall check a packet against first?Read the answer and worked solution →State table entries typically include port numbers, IP addresses and:Read the answer and worked solution →When a firewall provides NAT services, it often includes NAT information in its:Read the answer and worked solution →Why do application proxy gateways spend more time on each packet?Read the answer and worked solution →Suspicious application commands often originate from DoS attacks, malware and:Read the answer and worked solution →Besides signature based analysis, IDPSs also use which kind of analysis?Read the answer and worked solution →Which firewall technologyRead the answer and worked solution →Network or transport layerRead the answer and worked solution →Match the network security termRead the answer and worked solution →True or false about firewallsRead the answer and worked solution →Order the firewall life cycleRead the answer and worked solution →One word is wrongRead the answer and worked solution →Group the firewall dutiesRead the answer and worked solution →Network security bingoRead the answer and worked solution →

Worked practice questions

Addresses at the network layer are referred to as:

  1. IP addresses
  2. ID addresses
  3. IO addresses
  4. IT addresses
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Correct answer: A. IP addresses

1. Each layer of the stack has its own kind of address. 2. The network layer address is the familiar one. 3. Addresses at the network layer are referred to as IP addresses. 4. So the answer is IP addresses. _Source: NIST SP 800-41 Rev. 1, 'Guidelines on Firewalls and Firewall Policy'_

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TCP and UDP are commonly used protocols at which layer?

  1. Trajectory
  2. Transport
  3. Terminal
  4. Territory
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Correct answer: B. Transport

1. These two carry data between endpoints rather than route it. 2. They sit above the network layer. 3. TCP and UDP are commonly used transport layer protocols. 4. So the answer is the transport layer. _Source: NIST SP 800-41 Rev. 1, 'Guidelines on Firewalls and Firewall Policy'_

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Which is the fundamental network layer protocol for TCP/IP?

  1. IPv4
  2. IPX4
  3. IRC4
  4. IMC4
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Correct answer: A. IPv4

1. The network layer is where routing happens. 2. One protocol has been fundamental to it. 3. Internet Protocol version 4 is the fundamental network layer protocol for TCP/IP. 4. So the answer is IPv4. _Source: NIST SP 800-41 Rev. 1, 'Guidelines on Firewalls and Firewall Policy'_

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