Chapter 6 Quiz

1. Which are two characteristics of a hierarchical addressing scheme? (Choose two)
A. Larger broadcast domain
B. Network modularity
C. Routing stability
D. Private addressing support
E. Increased security

2. What could be two results of having a discontguous IP addressing scheme? (Choose two)
A. Layer 2 loop
B. Routing loop
C. Security hole
D. NAT cannot function properly
E. Automatic summarization issues
F. Spanning tree convergence time increase

3. What must an administrator do to ensure that summarization will work effectively?
A. Enable CIDR
B. Enable the use of subnet zero
C. Implement a classful routing protocol
D. Assign addresses in a hierarchical scheme

4. What are two ways that some networks can use IPv6 and still communicate over the Internet with the IPv4 networks? (Choose two.)
A. Enable tunnelling to allow IPv6 packets to be encapsulated and travel over IPv4 networks.
B. Buy new interface cards that can read IPv6 packets.
C. Upgrade the IOS on the IPv6 edge routers to an image that can translate IPv6 packets to IPv4 packets.
D. Increase the IPv4 header size to include the IPv6 header.
E. Use a Microsoft gateway to convert from IPv6 to IPv4.

5. Refer to the following command:
RouterX(config-if)# ipv6 address 2001:DB8:2222:7272::72/64
Which statement is true?
A. No other commands are necessary to allow IPv6 traffic to pass through the router.
B. The MAC address of the interface card will be used as the network portion of the IPv6 address.
C. A 6-to-4 tunnelling method will be used when IPv4 addresses pass through the router.
D. The complete IPv6 addressing is manually specified for the interface.

6. Refer to the exhibit. The number of required host addresses for each subnet in a network is listed in the exhibit. This number includes the host address requirements for all router ports and hosts on that subnet. After all device and router port address assignments are determined, what will be the total number of unused host addresses available?

Exhibit
Net A ? 6 hosts 10.1.1.0/29
Net B ? 14 hosts 10.1.1.32/28
Net C ? 33 hosts 10.1.1.64/26
Net D ? 126 hosts 10.1.1.128/25

A: 6
B: 14
C: 29
D: 34
E: 40
F: 62

7. A network administrator is tasked with dividing up a class C network among the QA, Sales and Administration departments. The QA department is made up of 10 people, the Sales is made up of 28 people, and the Administration has 6. Which two subnet masks adequately address the QA and Sales departments? (Choose two.)
A: 255.255.255.252 for QA
B: 255.255.255.224 for Sales
C: 255.255.255.240 for QA
D: 255.255.255.248 for QA
E: 255.255.255.0 for Sales

8. Refer to the exhibit. A new PC was deployed in the Sales network. It was given the host address of 192.168.10.31 with a default gateway of 192.168.10.17. The PC is not communicating with the network properly. What is the cause?

Exhibit
One Router (FCCJ)
FCCJ has network 192.168.10.16/28 attached to FA 0/0.3 (Sales)
FCCJ has network 192.168.10.17/28 attached to FA 0/0.3
FCCJ has network 192.168.10.64/26 attached to FA 0/0 (QA)
FCCJ has network 192.168.10.65/26 attached to FA0/0.1
FCCJ has network 192.168.10.128/25 attached to FA 0/0 (Admin)
FCCJ has network 192.168.10.129/25 attached to FA0/0.2

A. The address in the wrong subnet.
B. 192.168.10.31 is the broadcast address for this subnet.
C. The default gateway is incorrect.
D. The host address and default gateway are swapped.

9. Refer to the exhibit. What single network address and mask can be used to summarize the network shown?

Exhibit
172.16.0.0/16
172.18.0.0/16
172.20.0.0/16
172.22.0.0/16
Options
A. 172.16.0.0/13
B. 172.16.0.0/14
C. 172.16.0.0/20
D. 172.16.0.0/22
E. 172.16.0.0/24

10. What does VLSM allow a network administrator to do?
A. Use one subnet mask throughout an autonomous system
B. Use multiple subnet masks in the same IP address space
C. Use RIPv1 as the routing protocol in an entire autonomous system
D. Use multiple routing protocols within an autonomous system

11. An additional subnet is required for a new Ethernet link between Router1 and Router2 as shown in the diagram. Which of the following subnet addresses can be configured in this network to provide a maximum of 14 useable addresses for this link while wasting the fewest addresses?

Exhibit
Four Routers(R1, R2, R3, R4)
R1 is connected to R2 via Serial link (Subnet: 192.1.1.244/30)
R1 is connected to R2 Ethernet (Subnet: ?)
R2 is connected to R4 via Ethernet (Subnet: 192.1.1.208/28)
R3 is connected to R4 via Serial link (Subnet: 192.1.1.248/30)
R1 has network 192.1.1.64/26 attached
R2 has network 192.1.1.128/26 attached
R4 has network 192.1.1.192/28 attached

A. 192.1.1.16/26
B. 192.1.1.96/28
C. 192.1.1.160/28
D. 192.1.1.196/27
E. 192.1.1.224/28
F. 192.1.1.240/28