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QUESTION NO:26 DRAG DROP

Answer:

QUESTION NO:22

What is the difference between a CSU/DSU and a modem?

A. A CSU/DSU converts analog signals from a router to a leased line; a modem converts analog signals from a router to a leased line.

B. A CSU/DSU converts analog signals from a router to a phone line; a modem converts digital signals from a router to a leased line.

C. A CSU/DSU converts digital signals from a router to a phone line; a modem converts analog signals from a router to a phone line.

D. A CSU/DSU converts digital signals from a router to a leased line; a modem converts digital signals from a router to a phone line. Answer: D

QUESTION NO:3 Which layer in the OSI reference model is responsible for determining the availability of the receiving program and checking to see if enough resources exist for that communication?

A. transport

B. network

C. presentation

D. session

E. application Answer: E

QUESTION NO:6 A network administrator is verifying the configuration of a newly installed host by establishing an FTP connection to a remote server. What is the highest layer of the protocol stack that the network administrator is using for this operation?

A. application

B. presentation

C. session

D. transport

E. internet

F. data link Answer: A

QUESTION NO:35 Which two protocols are used by bridges and/or switches to prevent loops in a layer 2 network? (Choose two.)

A. 802.1d

B. VTP

C. 802.1q

D. STP

E. SAP Answer: A,D

QUESTION NO:4

Which of the following describes the roles of devices in a WAN? (Choose three.)

A. A CSU/DSU terminates a digital local loop.

B. A modem terminates a digital local loop.

C. A CSU/DSU terminates an analog local loop.

D. A modem terminates an analog local loop.

E. A router is commonly considered a DTE device.

F. A router is commonly considered a DCE device. Answer: A,D,E

QUESTION NO:10

Which of the following correctly describe steps in the OSI data encapsulation process? (Choose two.)

A. The transport layer divides a data stream into segments and may add reliability and flow control information.

B. The data link layer adds physical source and destination addresses and an FCS to the segment.

C. Packets are created when the network layer encapsulates a frame with source and destination host addresses and protocol-related control information.

D. Packets are created when the network layer adds Layer 3 addresses and control information to a segment.

E. The presentation layer translates bits into voltages for transmission across the physical link. Answer: A,D

QUESTION NO:37 A switch is configured with all ports assigned to VLAN 2 with full duplex FastEthernet to segment existing departmental traffic. What is the effect of adding switch ports to a new VLAN on the switch?

A. More collision domains will be created.

B. IP address utilization will be more efficient.

C. More bandwidth will be required than was needed previously.

D. An additional broadcast domain will be created. Answer: D

QUESTION NO:11 Refer to the graphic.

Host A is communicating with the server. What will be the source MAC address of the frames received by Host A from the server?

A. the MAC address of router interface e0

B. the MAC address of router interface e1

C. the MAC address of the server network interface

D. the MAC address of host A Answer: A

QUESTION NO:9 A receiving host computes the checksum on a frame and determines that the frame is damaged. The frame is then discarded. At which OSI layer did this happen?

A. session

B. transport

C. network

D. data link

E. physical Answer: D

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