You work as a technician for Tech Perfect Inc. You are troubleshooting an Internet name resolution
issue. You ping your ISP’s DNS server address and find that the server is down. You want to
continuously ping the DNS address until you have stopped the command. Which of the following
commands will you use?

Which layer of the OSI reference model is responsible for bridging?

Which of the following cables support transmission speed of 1000Mbps?
Each correct answer represents a complete solution. Choose all that apply.

Which of the following devices work at the data link layer of the OSI reference model?
Each correct answer represents a complete solution. Choose two.

You have been hired to design a TCP/IP-based network that will contain both Unix and Windows
computers. You are planning a name resolution strategy. Which of the following services will best
suit the requirements of the network?

Which of the following statements are true regarding plenum-rated cables?
Each correct answer represents a complete solution. Choose all that apply.

You are a network consultant for Tech Perfect Inc. You are designing the network of the company.
You are required to accomplish the following task:
l The cabling must support data transfer speed up to 50 Mbit/sec.
l The cost of cabling must be as low as possible.
Which of the following cables will you use?

Which of the following statements about a fiber-optic cable are true?
Each correct answer represents a complete solution. Choose three.

You work as a Network Administrator for Tech Perfect Inc. The company has a TCP/IP-based
network. You configure two Virtual LANs (VLANs) on your network. A router is configured to connect
the two VLANs. What will happen if the router fails?

Which of the following layers of the OSI model is responsible for establishing communication session
between the processes running on different communication entities in a network?