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NO.1 Which of the following best describes a repeater?
A. A passive device simply used to connect two or more cables. Does not generate or amplify any
signals.
B. A device that receives and retransmits a signal out its ports, but does not do any Layer 2 analysis
of the data.
C. A device that receives a signal and based on the Layer 2 destination address, makes a decision on
which ports the signal should be retransmitted.
D. A device that receives a signal and based on the Layer 3 destination address, makes a decision on
which ports the signal should be retransmitted.
Answer: B
NO.2 Kahn solved the problem of interconnecting different networks using different protocols by
pioneering a new protocol called TCP that was capable of:
A. Secure transmission of information.
B. Enforcing a constant packet size to avoid discards.
C. Allowing remote logins.
D. Providing host to host connectivity with global addressing.
Answer: D
NO.3 Which of the following is a feature of Layer 3?
A. Provides an universal addressing scheme
B. Ensures data is delivered across the Layer 2 network.
C. Provides reliable data transfers.
D. Provides a physical interface to the network.
Answer: A
NO.4 Choose two true statements that characterize Link State Routing
A. Routers send a copy of their routing table to their neighbors periodically.
B. Routers flood link information throughout the entire area.
C. Network converges quickly (within several seconds) after a topology change.
D. Routers do not have precise knowledge of the entire network topology.
Answer: B,C
NO.5 Which of the following statements best describes ARPANET?
A. ARPANET was an early packet switched network initially connecting 4 sites (Stanford, UC Santa
Barbara, UCLA, and U of Utah).
B. The mission of ARPANET was to connect packet switched networks and other diverse
networks,making an international network of networks.
C. ARPANET connected sites spread around the Hawaiian Islands to a central time-sharing computer
on the University of Hawaii campus.
D. ARPANET was based on the use of TCP/IP to interconnect diverse systems.
Answer: A
NO.6 Which network was created to replace ARPANET?
A. INWG
B. ALOHANET
C. IETF
D. NSFNET
Answer: D
NO.7 Which organization eventually became the standards body for IP and related protocols?
A. IEEE
B. IETF
C. NSFNET
D. ITU-T
E. APNIC
Answer: B
NO.8 You are configuring your Alcatel-Lucent 7750SR Service Router from the Command Line
Interface (CLI), and after entering a lengthy command, wish to return directly to the ROOT context.
Which control command allows you to do this quickly?
A. Ctrl-z
B. Ctrl-c
C. Esc
D. Shift-Page Down
Answer: A