Answer / guest

Answer: A

A DTE initiates a session in an X.25 network. The correct
order to establish a virtual circuit in an X.25 network is:

1.)The source DTE sends packet to the local DCE

2.)The local DCE packet binder sends packet to the closest

PSE (Packet Switch Exchange)

3.)The PSE (Packet Switch Exchange) passes the packet to the

next remote DCE

4.)The remote DCE examines the packet header of destination

DTE

What network design is becoming common when there is a central office with one or more remote locations? A. ISDN PRI at the central location and ISDN BRI at the remote locations. B. Using core routers at all sites C. Only using access routers D. Using a full mesh network

1 Answers  

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Which condition does not create LAN media problems? A. Protocol doesn?t scale well B. Long wait for the token C. Excessive collisions D. Too many devices

1 Answers  

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Traffic Shaping does which one of the following? A. Eliminates bottlenecks by throttling back traffic volume at the source or outbound end B. Reduces the frame size so bandwidth is better utilized C. It increases source traffic to a configured bit rate D. Allows you to control hubs and repeaters

1 Answers  

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Which of the following three protocols replace SDLC? A. 802.2 B. HDLC C. QLLC D. X.25

1 Answers  

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Distance Vector and Link-State protocols converge more quickly if: A. there is router redundancy B. there is router redistribution C. the update interval is set to its maximum D. the whole routing table is sent to announce changes

1 Answers  

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Match the following services with the correct descriptions: A. BRI 1. Provides two 64 Kbps B channels B. PRI 2. Provides 23 or 30 B channels 3. Provides one 16 Kbps D channel 4. Provides one 64 Kbps D channel 5. Provides a total bit rate of 2.048 Mbps in Europe and Australia 6. Provides a total bit rate of 144 Kbps 7. Provides a total bit rate of 1.544 Kbps in North America and Japan

1 Answers  

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What are two services that the OSPF Hello protocol provides? A. It discovers neighbor routers B. It gets routes from neighbors during startup C. It helps elect a designated router D. It allows administrator to test for connectivity between two devices

1 Answers  

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What would a TE2 device be used for in an ISDN connection? A. as a connection from an NT1 device to an NT2 device B. as a connection from a non-ISDN terminal through a TA to the ISDN network C. as a connection from four-wire subscriber wiring to the conventional two-wire local loop D. as a connection to the ISDN network through a four-wire, twisted-pair digital link

2 Answers  

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how many switches can be cascaded

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What is the first step in diagramming packet flow for the terminals within a network? A. Identify the end user nodes of all the terminals B. Figure out the speed of all the servers C. Find out where all the routers are located D. Find out where all the switched are located

3 Answers  

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What address is 12 hexadecimal, resides in the Data-Link layer, and is burned in the ROM by the manufacturer.

2 Answers  

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What are the three commonly used methods of flow control used for handling network congestion? A. Buffering B. Source-quench messages C. Error checking D. Windowing

1 Answers   Cisco,

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