1. PDUs at the Network layer of the OSI are called what?
A. Transport
B. Frames
C. Packets
D. Segments
2. Which fields are contained within an IEEE Ethernet frame header? (Choose two.)
A. Source and destination MAC address
B. Source and destination network address
C. Source and destination MAC address and source and destination network address
D. FCS field
3. What is the maximum data rate for 802.11b wireless LANs?
A. 2Mbps
B. 10Mbps
C. 11Mbps
D. 54Mbps
4. Segmentation of a data stream happens at which layer of the OSI model?
A. Physical
B. Data Link
C. Network
D. Transport
5. Which of the following describe router functions? (Choose four.)
A. Packet switching
B. Collision prevention
C. Packet filtering
D. Broadcast domain enlargement
E. Internetwork communication
F. Broadcast forwarding
G. Path selection
6. Which layer of the OSI provides translation of data?
A. Application
B. Presentation
C. Session
D. Transport
E. Data Link
7. When data is encapsulated, which is the correct order?
A. Data, frame, packet, segment, bit
B. Segment, data, packet, frame, bit
C. Data, segment, packet, frame, bit
D. Data, segment, frame, packet, bit
8. Why does the data communication industry use the layered OSI reference model? (Choose two.)
A. It divides the network communication process into smaller and simpler components, thus
aiding component development, design, and troubleshooting.
B. It enables equipment from different vendors to use the same electronic components, thus
saving research and development funds.
C. It supports the evolution of multiple competing standards, and thus provides business
opportunities for equipment manufacturers.
D. It encourages industry standardization by defining what functions occur at each layer of
the model.
E. It provides a framework by which changes in functionality in one layer require changes in
other layers.
9. What are two purposes for segmentation with a bridge?
A. Add more broadcast domains.
B. Create more collision domains.
C. Add more bandwidth for users.
D. Allow more broadcasts for users.
E. Reduce collisions within a broadcast domain.
F. Increase the number of collision domains.
10. Which of the following are unique characteristics of half-duplex Ethernet when compared to full-duplex Ethernet?
A. Half-duplex Ethernet operates in a shared collision domain.
B. Half-duplex Ethernet operates in a private collision domain.
C. Half-duplex Ethernet has higher effective throughput.
D. Half-duplex Ethernet has lower effective throughput.
E. Half-duplex Ethernet operates in a private broadcast domain.
11. You want to implement a network medium that is not susceptible to EMI. Which type of cabling should you use?
A. Thicknet coax
B. Thinnet coax
C. Category 5 UTP cable
D. Fiber optic cable
52 Chapter 1 _ Internetworking
12. Acknowledgements, sequencing, and flow control are characteristic of which OSI layer?
A. Layer 2
B. Layer 3
C. Layer 4
D. Layer 7
13. Which of the following are types of flow control?
A. Buffering
B. Cut-through
C. Windowing
D. Congestion avoidance
E. VLANs
14. Which of the following types of connections can use full duplex? (Choose three.)
A. Hub to hub
B. Switch to switch
C. Host to host
D. Switch to hub
E. Switch to host
15. Which of the following describes a MAC address? (Choose two.)
A. It is a globally unique IP address.
B. It is a unique address in a broadcast domain.
C. It is provided by the manufacturer of the NIC.
D. It is used as part of the IPX/SPX configuration.
E. It is a logical address.
16. Which of the following are considered some reasons for LAN congestion? (Choose six.)
A. Bill Gates
B. Low bandwidth
C. Too many users in a broadcast domain
D. Broadcast storms
E. Routers
F. Multicasting
G. The addition of hubs to the network
H. Large amount of ARP or IPX traffic
17. Which of the following are reasons for breaking up a network into two segments with a router? (Choose two.)
A. To create fewer broadcast domains
B. To create more broadcast domains
C. To create one large broadcast domain
D. To stop one segment’s broadcasts from being sent to the second segment
18. How does a host on an Ethernet LAN know when to transmit after a collision has occurred?
A. The destination host sends a request to the source for retransmission.
B. The jam signal indicates that the collision has been cleared.
C. The hosts will attempt to resume transmission after a time delay has expired.
D. An electric pulse indicates that the collision has cleared.
E. The router on the segment will signal that the collision has cleared.
19. You want to use full-duplex Ethernet instead of half duplex. Which two of the following will be benefits on your network?
A. You will have more collision domains.
B. You’ll have no collisions on each segment.
C. It should be faster.
D. It will be less expensive.
20. You have the following MAC address: C9-3F-32-B4-DC-19. What is the OUI portion in binary?
A. 11000110-11000000-00011111
B. 1100110000111111-00011000
C. 11001001-00111111-00110010
D. 11001100-01111000-00011000
0 comments:
Post a Comment