Which characteristic is true of a MAC address?

It is assigned by the network administrator and can be reused on different networks.

It is a logical address that can change based on the network.

It is a 48-bit address typically burned into the network interface card.

It is a 32-bit address used for routing across the internet.

What information is contained in the header of a data link layer frame?

Source and destination port numbers

Source and destination MAC addresses

Source and destination IP addresses

A network administrator is analyzing a packet capture and sees that a frame has a destination MAC address of the router's interface, but the destination IP address is a remote host. The frame is being sent from a local host to the router. What is the purpose of the destination MAC address in this frame?

To identify the final destination host on the remote network

To identify the source host's MAC address

To provide the IP address of the next-hop router

To deliver the frame to the router on the local network so it can forward the packet

A network administrator is troubleshooting a slow application. The administrator notices that the application is using UDP instead of TCP. What is a likely reason for this choice?

UDP has lower overhead and is faster for real-time applications.

UDP guarantees ordered delivery of packets.

UDP provides error checking and retransmission.

UDP provides reliable delivery, which is required for the application.

CiscoCertified Support Technician (CCST) Networking

Domain 1Objective 1

1.1. Identify the Fundamental Conceptual Building Blocks of Networks. 100-150 Practice Questions (Page 6)

Part of the Standards and Concepts domain, which makes up ~22% of our current practice bank. Cisco does not publish an official question count, but from its 50-minute exam (~20–35 total, ~4–8 in this domain), expect 1–2 from this objective — we provide 34 practice questions to prepare you well beyond it. (estimate)

34questions here

7free pages

6concepts

Questions 26–30

26foundation · easy
Which characteristic is true of a MAC address?
Select an answer first
27foundation · easy
What information is contained in the header of a data link layer frame?
Select an answer first
28expert · medium
A network administrator is analyzing a packet capture and sees that a frame has a destination MAC address of the router's interface, but the destination IP address is a remote host. The frame is being sent from a local host to the router. What is the purpose of the destination MAC address in this frame?
Select an answer first
29expert · hard
A network administrator is troubleshooting a slow application. The administrator notices that the application is using UDP instead of TCP. What is a likely reason for this choice?
Select an answer first
30foundation · easy
Which field is found in the header of a network layer packet?
Select an answer first

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1.1. Identify the Fundamental Conceptual Building Blocks of Networks. 100-150 Practice Questions (Page 6)

Questions 26–30

Which characteristic is true of a MAC address?

What information is contained in the header of a data link layer frame?

A network administrator is troubleshooting a slow application. The administrator notices that the application is using UDP instead of TCP. What is a likely reason for this choice?

Which field is found in the header of a network layer packet?

Keep studying — Standards and Concepts