Computer Networking Fundamentals Week 4

Question 1

Which statement best describes the NTP stratum model and its responsibility?

Answer 1

The NTP stratum model is a hierarchical system that ranks time servers based on their accuracy and reliability. It ensures that time synchronization is maintained across all devices on the network.

Question 2

Which statement best defines network address translation (NAT)?

Answer 2

The process of converting private IP addresses to public IP addresses.

Question 3

Which statement best describes the importance of time zones and stratum in NTP and their role in time synchronization across networks?

Answer 3

Stratum represents the accuracy and reliability of a time server in the NTP hierarchy.

Question 4

What is the primary purpose of Trunk mode in switch interface configurations?

Answer 4

To support multiple VLANs on a single interface.

Question 5

Why are testing and verifying extended ACL configurations considered crucial in network environments?

Answer 5

Testing and verifying extended ACL configurations are essential for identifying and resolving misconfigurations or errors.

Question 6

Which statement about Access Control Lists (ACLs) is correct?

Answer 6

ACEs in an ACL represent the order of statements and are essential for proper ACL functioning.

Question 7

What is the purpose of a standard Access Control List (ACL) and what are its limitations?

Answer 7

The purpose of a standard ACL is to control access to specific network services and resources based on the source IP address. Its limitations include the inability to filter traffic based on destination IP addresses and port numbers.

Question 8

Standard and extended access control lists (ACLs) differ in their scope of control and the criteria they can use for filtering network traffic.

Answer 8

True

Question 9

Which of the following statements best differentiates between the Access and Trunk switch interface modes?

Answer 9

Access mode is used for connecting end devices, while Trunk mode is used for interconnecting switches.

Question 10

What are Wildcards in the context of Access Control Lists (ACLs)?

Answer 10

Wildcards are used to define the range of IP addresses allowed in both Extended and Standard ACLs.