quiz2-sol
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quiz2-sol

Course Number: CS 898, Fall 2009

College/University: Wichita State

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CS 898T Mobile and Wireless Networks Quiz 2 - Name: Spring 2004 (50 points - 2 points for each problem) ( B ) 1. Which layer of the OSI model translates physical addresses to logical addresses? (A) physical layer (B) network layer (C) transport layer (D) session layer ( B ) 2. Which IEEE standard denes the LLC and MAC sublayers? (A) 802.1 (B) 802.2 (C) 802.3 (D) 802.5 ( B ) 3. 10Base-T can support segments of up...

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898T CS Mobile and Wireless Networks Quiz 2 - Name: Spring 2004 (50 points - 2 points for each problem) ( B ) 1. Which layer of the OSI model translates physical addresses to logical addresses? (A) physical layer (B) network layer (C) transport layer (D) session layer ( B ) 2. Which IEEE standard denes the LLC and MAC sublayers? (A) 802.1 (B) 802.2 (C) 802.3 (D) 802.5 ( B ) 3. 10Base-T can support segments of up to (A) 10 m (B) 100 m (C) 200 m (D) 500 m ( A ) 4. A network is wired using a single length of coaxial cable, with nodes connected at various points along the cable. Which network topology is in use? (A) bus (B) star (C) ring (D) mesh ( B ) 5. Which network connectivity device(s) function at the network layer of the OSI model? (check D all that apply) (A) bridges (B) routers (C) hubs (D) brouters ( C ) 6. Which device is likely to be used only in wide-area networks? (A) router (B) bridge (C) CSU/DSU (D) hub ( D ) 7. Which media access method is used in wireless LAN? (A) CDMA/CD (B) CDMA/CA (C) CSMA/CD (D) CSMA/CA ( C ) 8. Which Ethernet standard uses UTP cable? (A) 10Base2 (B) 10Base5 (C) 10Base-T (D) 10Base-F ( A ) 9. Which type of WAN media uses a modem? (A) PSTN (B) X.25 (C) ISDN (D) Frame Relay ( C ) 10. Which of the following WAN technologies oers the highest bandwidth? (A) T1 (B) T3 (C) OC-3 (D) ISDN ( A ) 11. Which of the following WAN technologies use packet switching? (check all that apply) B, D (A) ISDN (B) ATM (C) SONET (D) Frame Relay ( B ) 12. Which of the following WAN types typically use ber optic media? (A) ISDN (B) SONET (C) DS3 (D) T1 ( B ) 13. An Ethernet link is working at 20 Megabaud. What is the data transfer rate for this link? (A) 5 Mbps (B) 10 Mbps (C) 20 Mbps (D) 80 Mbps. ( D ) 14. Which modulation is techniques used in 802.11g? (A) FHSS (B) QPSK (C) DSSS (D) OFDM ( A ) 15. Based on the QoS, which application requires high reliability? (A) Web access (B) audio on demand (C) videoconference (D) none of the above ( A ) 16. An 802.16 network has a channel width of 20 MHz. When QPSK is used, what is the transfer rate? (A) 40 Mbps (B) 64 Mbps (C) 80 Mbps (D) 120 Mbps ( B ) 17. A DHCP server can be used to provide the same functionality as a(n): (A) ICMP server (B) RARP server (C) TFTP server (D) none of the above ( D ) 18. The UDP provides a delivery service that is: (A) connection-oriented and reliable (B) connectionless and reliable (C) connection-oriented and unreliable (D) connectionless and unreliable ( B ) 19. Which function is not used in UDP socket programming in C? (A) bind (B) accept (C) socket (D) sendto ( D ) 20. Which is not a routing algorithm or protocol? (A) AODV (B) BGP (C) OSPF (D) none of the above ( D ) 21. The assigned port for the POP server is: (A) 21 (B) 23 (C) 25 (D) 110 ( A ) 22. A media server is transmit...
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