Guide to Networking Essentials, 8th ed., ISBN 9780357118283
Chapter 2 Solutions-1
Chapter 2 Solutions
Review Questions
1. Which of the following is a limitation of early networks that used a daisy-chain method of
connecting computers? (Choose two.)
b. The processing speed of the computers connected
d. No Internet access
2. Which of the following is true of a repeater?
b. Determines to which network to send a packet
d. Has a burned-in MAC address for each port
3. Which of the following is true of a hub? (Choose two.)
a. Usually has just two ports
d. Works with MAC addresses
4. Which of the following is the unit of measurement by which a network device’s bandwidth is
usually specified?
a. Bytes per second
d. Bytes per minute
5. Which of the following is a step in the operation of a switch? (Choose two.)
a. Reads source and destination IP addresses
c. Updates the switching table with destination IP address and port information
Guide to Networking Essentials, 8th ed., ISBN 9780357118283
Chapter 2 Solutions-2
6. What unit of information do switches work with?
b. Bits
c. Packets
7. Which of the following describes how devices connected to a switch use the bandwidth of the
switch?
b. Half-duplex bandwidth
d. Shared bandwidth
8. Which element of incoming data does a switch use to create its switching table?
a. Source IP address
c. Destination physical address
9. What purpose does the timestamp serve in a switching table?
a. Tells the switch when to forward a frame
d. Tells the switch how long it has been running
10. What feature of a switch allows devices to effectively communicate at 200 Mbps on a 100
Mbps switch?
a. Uplink port
d. Bit strengthening
e. Frame doubling
11. To which device is a wireless access point most similar in how it operates?
b. Switch
d. Router
12. What’s the purpose of an RTS signal in wireless networking?
a. It allows the AP to request which device is the transmitting station.
d. It allows a client to request data from the AP.
13. Which of the following is a common operating speed of a wireless access point?
a. 10 Kbps
b. 110 Gbps
14. Which of the following is a task performed by a NIC and its driver? (Choose three.)
b. Converts bit signals into frames for transmission on the medium
d. Adds a header before sending a frame to the network protocol
15. Which of the following best describes a MAC address?
a. A 24-bit number expressed as 12 decimal digits
d. A dotted decimal number burned into the NIC
16. Under which circumstances does a NIC allow inbound communications to pass through the
interface? (Choose two.)
a. The source MAC address is the broadcast address.
Guide to Networking Essentials, 8th ed., ISBN 9780357118283
Chapter 2 Solutions-4
d. The NIC is operating in exclusive mode.
17. How does a protocol analyzer capture all frames?
b. It sets all incoming destination addresses to be broadcasts.
d. It sets the exclusive mode option on the NIC.
e. It captures only multicast frames.
18. Where do you usually find a MAC address?
b. In a switch’s configuration file
d. In the header of a packet
19. Which of the following is the purpose of an SSID?
a. Assigns an address to a wireless NIC
c. Acts as a security key for securing a network
20. Which of the following describe the function of routers? (Choose two.)
a. Forward frames from one network to another.
c. Attach computers to the internetwork.
21. What information is found in a routing table?
a. Computer names and IP addresses
c. MAC addresses and ports
22. You currently have 15 switches with an average of 20 stations connected to each switch. The
switches are connected to one another so that all 300 computers can communicate with one
another in a single LAN. You have been detecting a high percentage of broadcast frames on
this LAN. You think the number of broadcasts might be having an impact on network
performance. What should you do?
b. Configure the switches to operate in half-duplex mode.
d. Disable broadcast forwarding on the switches.
23. Which of the following is true about a router versus a switch?
b. Routers work with physical (MAC) addresses, switches work with logical (IP) addresses.
d. Routers forward broadcast packets, switches do not.
24. If a router receives a packet with a destination network address unknown to the router, what
does the router do?
a. Sends the packet out all interfaces
c. Adds the destination network to its routing table
25. Which of the following is true about a router? (Choose two.)
a. Forwards broadcasts
d. Is used primarily to connect workstations
Guide to Networking Essentials, 8th ed., ISBN 9780357118283
Chapter 2 Solutions-6
Hands-On Projects
Hands-On Project 2-1
Step 9: The packets between Computer2 and Computer3 are captured by Computer1 because the hub
Hands-On Project 2-2
Step 9: Computer1 captured the ARP packets because they are broadcast packets, and a switch
forwards all broadcasts to all connected ports. The ICMP packets are unicast packets, and the switch
Hands-On Project 2-3
Step 7: Answers will vary. There might be speed indicators, activity indicators, and collision indicators.
Critical Thinking
Challenge Lab 2-1
In the memo, students should answer these questions:
• What filter options (if any) did you configure in Wireshark?
• What commands did you use to generate packets on the network?
• What IP addresses did you attempt to communicate with?
• What was your result? Is your computer attached to a hub or switch? Why did you come to this
conclusion?
Challenge Lab 2-2
In the memo, students should answer these questions:
• What type of packets does traceroute use?
Guide to Networking Essentials, 8th ed., ISBN 9780357118283
Chapter 2 Solutions-7
• What’s the response each router sends back to your computer?
• How does your computer get a response from each router between your computer and the
destination?
Case Project 2-1
Answers will vary. The memo should state that hubs should be replaced by switches to eliminate
Case Project 2-2
Answers will vary. A router can be added to the network to make the broadcast domains smaller; IP
addressing needs to be changed to reflect multiple subnets.
Case Project 2-3