Guide to Networking Essentials 7th Edition by Greg Tomsho - Solution Manual

Guide to Networking Essentials 7th Edition by Greg Tomsho – Solution Manual

Instant Download – Complete Test Bank With Answers

Sample Questions Are Posted Below

Chapter 5 Solutions

Review Questions

1. An IPv6 address is made up of how many bits?
2. 32
3. 48
4. 64
5. 128
6. 256
7. Which Application-layer protocol provides remote access to a Windows computer via a GUI?
8. Telnet
9. RDP
10. SSH
11. FTP
12. If a protocol is routable, which TCP/IP layer does it operate at?
13. Network access
14. Internetwork
15. Transport
16. Application
17. Which Application-layer protocol is used to monitor and manage network devices, and what Transport-layer protocol does it use?
18. SMTP, UDP
19. SNMP, TCP
20. SMTP, TCP
21. SNMP, UDP
22. Which TCP/IP model layer takes a large chunk of data from the Application layer and breaks it into smaller segments?
23. Network access
24. Internetwork
25. Transport
26. Application
27. Which of the following protocols resolves logical addresses to physical addresses?
28. DHCP
29. TCP
30. IP
31. DNS
32. ARP
33. Which of the following protocols provides connectionless service? (Choose all that apply.)
34. IP
35. UDP
36. TCP
37. HTTP
38. If you want to design an Application-layer protocol that provides fast, efficient communication and doesn’t work with large amounts of data, what Transport-layer protocol would you design it to use?

UDP

9. Which of the following is the term for identifying packets used by TCP to establish a connection?
10. Port number indicators
11. Multiwindow agreement
12. Three-way handshake
13. Sequencing establishment
14. What element of a DHCP server uses the client MAC address to ensure that the client is leased the same address each time it requests an IP address?
15. IP address scope
16. Address exclusion
17. Reservation
18. ARP mapping
19. Which of the following is the first packet sent when a computer wants to lease an IP address?
20. DHCPAck
21. DHCPDiscover
22. DHCPRequest
23. DHCPOffer
24. Which of the following IPv6 features is an enhancement to IPv4? (Choose all that apply.)
25. Larger address space
26. Works at the Internetwork and Transport layers
27. Built-in security
28. Connectionless communication
29. Which protocol can configure a computer’s IP address and subnet mask automatically?
30. TCP
31. IP
32. ARP
33. DNS
34. DHCP
35. What type of packets are transmitted between DHCP client and server when a client is initially leasing an IP address?
36. Broadcast
37. Multicast
38. Unicast
39. Anycast
40. Which of the following accurately describes the .edu in the FQDN www.yc.edu?
41. Fully qualified domain name
42. Top-level domain
43. Root domain
44. Second-level domain
45. What’s another name for a DNS client?
46. Alias
47. Reservation
48. DDNS
49. Resolver
50. What type of resource record is an alias for another record?
51. MX
52. AAAA
53. CNAME
54. PTR
55. When a Windows computer is configured to use DHCP but no DHCP server is available, what type of address is configured automatically for it?
56. PAT
57. APIPA
58. NAT
59. Static
60. Where does a DNS server look when it can’t resolve a query from its zone records or cache?
61. Root hints
62. Alternate server
63. Top-level domain
64. BIND
65. What does the Transport layer use to identify source and destination Application-layer protocols?
66. Checksum
67. TCP address
68. Port number
69. Root hints
70. Which of the following Application-layer protocols typically uses the UDP Transport-layer protocol? (Choose all that apply.)
71. HTTP
72. DNS
73. DHCP
74. FTP
75. Which is the correct order of headers, from left to right, in a completed frame?
76. Frame, TCP, IP
77. UDP, frame, IP
78. TCP, IP, frame
79. Frame, IP, UDP
80. Which of the following is a task performed by the Network access layer? (Choose all that apply.)
81. Verifies that incoming frames have the correct destination MAC address
82. Defines and verifies IP addresses
83. Transmits and receives bit signals
84. Resolves MAC addresses by using IP addresses
85. Delivers packets efficiently
86. What field of the IP header does the tracert program use to get the IP address of routers in the path?
87. Version
88. TTL
89. Checksum
90. Protocol
91. Which of the following is not found in a connectionless Transport-layer protocol? (Choose all that apply.)
92. Three-way handshake
93. Port numbers
94. Checksum
95. Acknowledgements

Hands-On Projects

Hands-On Project 5-1

Step 3:

• NIC displayed in the “Connect using” text box: Network access
• Client for Microsoft Networks: Application
• File and Printer Sharing for Microsoft Networks: Application
• Internet Protocol Version 4: Internetwork and Transport
• Internet Protocol Version 6: Internetwork and Transport

Hands-On Project 5-2

Step 6: Network access layer

Step 7: Internetwork layer

Step 8: Transport layer

Step 9: Application layer

Hands-On Project 5-7

Step 6: Students should state that the new entries are the MAC address of the default gateway and the DNS server (if the DNS server is on the same subnet as the student’s computer). The IP address for www.cengage.com isn’t in the ARP cache because it contains only entries for computers on the same subnet.

Hands-On Project 5-9

Step 3: Answers will vary. A MAC address looks like this example: 0A:1B:2C:3D:4E:5F.

Challenge Labs

Challenge Lab 5-1

What capture filter did you use to limit Wireshark to capturing only packets related to HTTP?

TCP port 80

Find the three-way handshake that immediately precedes the first HTTP packet. Which Transport-layer protocol was used to create the connection?

TCP

Find the following fields in the Transport-layer header of the third packet in the three-way handshake. Research their meanings, and then write down their values along with brief descriptions of them:

• Source port: Answers will vary but are typically a value between 1024 and 65,535.
• Destination port: 80
• Sequence number: Usually 0
• Flags: Syn: Usually 0x002
• Window size: Answers will vary, but a typical value is 8192 bytes.
• Maximum segment size: Answers will vary, but the MSS is usually 1460 bytes.

How are the sequence number and acknowledgement used to make this protocol reliable?

The sequence number is used to reassemble segments if they arrive out of order and is used with the acknowledgement to keep track of which segments the destination received. If the sender doesn’t receive an acknowledgement for transmitted segments, the segments are retransmitted.

Challenge Lab 5-2

What commands did you use to cause your computer to request a new address lease?

ipconfig /release and ipconfig /renew

What capture filter did you use to limit Wireshark to capturing only packets related to DHCP?

UDP port 67

Find the four packets involved in the DHCP lease. In the Info column of Wireshark, what’s the name shown for each of the four packets?

DHCPDiscover, DHCPOffer, DHCPRequest, DHCPAck

Find the following fields in the Transport-layer header of the first packet in the DHCP lease, and write down their values:

• Source port: 68
• Destination port: 67

What’s the Internetwork-layer source address and destination address in the two packets sent by the client computer? Explain.

The source address is 0.0.0.0, and the destination address is 255.255.255.255. The source address is 0.0.0.0 because the client doesn’t yet have an IP address. The destination address is 255.255.255.255 because it’s a broadcast.

Case Projects

Case Project 5-1

Students should write an e-mail to the employee, explaining that she should open a command prompt window and enter the command ipconfig /all. Based on the information she gives, students should state that this employee is receiving an APIPA address, which means her computer was unable to contact a DHCP server. The DHCP server should be checked for functionality, and if it’s okay, the employee’s network connection should be checked.

Case Project 5-2

Students should say they need to configure DHCP on one of the servers. The DHCP server should have a scope configured that accommodates the 25 workstations and printers. The printers should have reservations created. The scope might also include exclusions for the two addresses assigned to the servers.