NOKIA Scalable IP Networks Set 1

1.

You are configuring your Nokia 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?

Ctrl-z Ctrl-c Esc Shift-Page Down

2.

Which of the following best describes a repeater?

A passive device simply used to connect two or more cables. Does not generate or amplify any signals. A device that receives and retransmits a signal out its ports, but does not do any Layer 2 analysis of the data. 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. 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.

3.

How do protocols such as ATM and Frame-Relay support differentiating multiple customers or traffic types on the same physical wire?

ATM and Frame-Relay are circuit switched protocols and use Virtual Circuits to create logical separation of traffic. ATM and Frame-Relay are point-to-point protocols and do not support different customers or traffic type on the same physical wire. ATM and Frame-Relay are circuit switched protocols and use VLAN's to create logical separation of traffic. ATM and Frame-Relay are circuit switched protocols and use IP Header information to create logical separation of traffic.

4.

Which statement accurately explains the purpose of the TCP protocol and what it provides?

The primary purpose of TCP is to provide reliable communications between application services. The primary purpose of TCP is to provide unreliable communications between application services The primary purpose of TCP is to provide IP routing between application services. The primary purpose of TCP is to define the correct format for the application layer such as JPEG or HTML.

5.

Which organization first considered cross-platform networking support to be a necessity?

IBM. US Military. Nokia. NASA. Bell Labs

6.

Which of the following statements best describes ARPANET?

ARPANET was an early packet switched network initially connecting 4 sites (Stanford, UC Santa Barbara, UCLA, and U of Utah). The mission of ARPANET was to connect packet switched networks and other diverse networks, making an international network of networks. ARPANET connected sites spread around the Hawaiian Islands to a central time-sharing computer on the University of Hawaii campus. ARPANET was based on the use of TCP/IP to interconnect diverse systems.

7.

Kahn solved the problem of interconnecting different networks using different protocols by pioneering a new protocol called TCP that was capable of:

Secure transmission of information. Enforcing a constant packet size to avoid discards. Allowing remote logins. Providing host to host connectivity with global addressing.

8.

Which organization eventually became the standards body for IP and related protocols?

IEEE IETF NSFNET ITU-T APNIC

9.

What is the name for an organization that provides Internet services to its customers?

A large corporation. An ISP. A home based business. A content provider.

10.

The IANA is responsible for:

Intra-city ISP traffic Allocation of the global IP address space Allocating IP addresses for residential customer traffic Allocating North American IP addresses

NOKIA Scalable IP Networks Set 1

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NOKIA Scalable IP Networks Set 1

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