CS601 Solved Papers File 2

CS 601 DATA COMMUNICATION

Q1. In FDDI, THT stands for:

Token Hash Timer Tier Holding Timer Target Holding Timer

Token Holding Timer

Q2. The DSAP and SSAP are addresses used by ____to identify the protocol stack. Network

MAC

LLC

Q3. Repeaters work on the ____Layer/Layers

Data Link

Physical

Network All of the above

Q4. Bridge is _____ Layer Device

Data Link

Physical Network

Q5. On the transport layer of TCP/IP suit_____ protocols are used TCP & IP

TCP & UDP

Q6. Application layer of TCP/IP suit is equivalent of _____layers of OSI Model Application, Presentation and Transport Application, Session and Transport

Application, Presentation and Session

Q7. A Repeater does not allow us to extend the physical length of network True

False

Q8. Shortest frame in HDLC protocols is usually the ____ frame.

Q9. Question # 10 of 10

_____ is HDLC’s error detection field. Flag BCC BSC

FCS

Top

Q1. of 10 ( Start time: 08:42:52 PM )

Router works on the __________ layers.

Network. Physical & Data Link. All of above.

Q2. of 10 ( Start time: 08:44:07 PM )

ZMODEM protocol combines the features of ____________________

XMODEM YMODEM BOTH XMODEM & YMODEM

Q3. of 10 ( Start time: 08:44:40 PM )

Like 10 Base 5, 10 Base 2 is a _________ Topology LAN

Bus Star Ring Mesh