Question 1

Which component of the Nokia 7750 SR is in charge of performing the longest prefix match lookup on packets that arrive on the physical interfaces?

Options :

A : Control Processing Module (CMP)

B : Media Dependent Adapter (MDA)

C : Switch Fabric (SF)

D : Input/Output Module (IOM)

Answer: D

Question 2

Your corporate network uses variable length subnetting to make more efficient use of IP addresses. One of the IP addresses for a host is 131.39.161.17 with a subnet mask of 255.255.248.0. What is the proper notation for the network to which this host is connected?

Options :

A : 131.39.160.0/21

B : 131.36.161.0/20

C : 131.39.161.17/21

D : 131.36.160.0/20

Answer: A

Question 3

You work as the network administrator at ABC.com. The ABC.com network consists of a domain named

ABC.com. The servers at the ABC.com network run Windows Server 2003 and the workstations, Windows XP

Professional.

ABC.com has a Web server named ABC-SR10 which is connected to the Internet. During the course of the day

you have received instructions from the CIO to use System Monitor to determine how much bandwidth is used

on ABC-SR10's Internet connection. You decide to use the Bytes Total/sec counter with a sample rate of 10

seconds. You also plan to archive the logs once a day. Due to limited hard drive space, you need to prevent the

logs from getting too big.

What actions must you take to?

Options :

A : You should disable recursion

B : You should create a one-way initiated demand-dial connection.

C : You should configure an alert trigger when the Datagrams/sec counter is high

D : You should keep ABC-SR10 on the existing counter and set the sample rate to 60 seconds.

Answer: D

Question 4

You administer your company's Windows 2003 domain. The domain contains 10 Windows Server 2003

computers, 750 Windows XP Professional computers, and 300 Windows NT 4.0 Workstation computers Four

of the Windows Server 2003 computers are DHCP servers, and two of the Windows Server 2003 computers

are DNS servers. All network computers are configured to use DHCP. All four DHCP servers are configured

with scopes for every subnet in the network.

You configure the DHCP servers to always register and update client computer information in DNS. To increase

security, you configure DNS to only allow secure updates.

Immediately following this, you discover that the resource records for the DHCP clients are no longer updated

when IP addresses change. You want the resource records for the client computers to have the most recent

information.

What should you do?

Options :

A : Add the computer accounts of the four DHCP servers to the DNSUpdateProxy global security group

B : Add the computer accounts of the two DNS servers to the DHCP Users domain local security group

C : Add the computer accounts of the four DHCP servers to the DNSAdmins domain local security group

D : Configure the four DHCP servers to enable updates for DNS client computers that do not support dynamic update. Configure the DHCP server to not release the DHCP lease for Windows XP Professional computers and the Windows NT 4.0 Workstation computers at shutdown. Configure the two DNS servers to use a Time to Live (TTL) interval on resource records that are shorter than the lease time used by the DHCP servers.

Answer: A

Question 5

A routing domain uses a link-state routing protocol. Which of the following would NOT be an advantage of dividing the entire routing domain into areas?

Options :

A :

Detailed topology information is only shared among routers within the same area, thus reducing the complexity of the SPF calculation.

B : Route tables can be reduced by summarizing the IP prefixes advertised between areas.

C :

Less-capable routers can be isolated from having to keep track of IP prefixes that are external to the local routing domain.

D :

Fewer routers are required to handle the same amount of traffic, as compared to a single-area domain.

Answer: D