Microsoft Microsoft Certifications 98-366 Questions & Answers

• Question 21:

  What is the DNS record type that specifies an alias name of another address record?

  A. MX

  B. CNAME

  C. NS

  D. SOA

  Correct Answer: B

  CNAME stands for Canonical Name. CNAME records can be used to alias one name to another.

• Question 22:

  What are two differences between switches and hubs? (Choose two.)

  A. Switches are slower than hubs because of the extra addressing functions that switches perform.

  B. Switches send data to all of the computers that are connected to them for efficiency.

  C. Switches are capable of sending and receiving data at the same time.

  D. Switches identify the intended destination of the data that they receive.

  Correct Answer: AD

  Hubs repeat everything they receive and can be used to extend the network.

  Switches control the flow of network traffic based on the address information in each packet. A switch learns which devices are connected to its ports (by monitoring the packets it receives), and then forwards on packets to the appropriate port

  only. This allows simultaneous communication across the switch, improving bandwidth.

• Question 23:

  Which metric does Routing Information Protocol (RIP) use to determine the least costly route?

  A. Delay

  B. Host ID

  C. Hop count

  D. Interface

  Correct Answer: C

  RIP uses a single routing metric (hop count) to measure the distance between the source and a destination network.

• Question 24:

  What is an example of a Layer 3 device that connects multiple computers and networks?

  A. Packet

  B. Repeater

  C. Switch

  D. Router

  Correct Answer: D

  A router is a layer 3 device, although some newer switches also perform layer 3 functions.

• Question 25:

  You need to run four Ethernet network drops. Each drop is approximately 125 feet/46.33 meters.

  An interference exists along the path of each drop.

  You need to ensure that interference is reduced.

  Which cable type should you use?

  A. STP Cat5e

  B. UTPCat5e

  C. Cat3

  D. UTPCat6

  Correct Answer: A

  Shielded cable, here STP Cat5e, would reduce interference.

• Question 26:

  This question requires that you evaluate the underlined text to determine if it is correct.

  "Dynamic routing" is fault tolerant.

  Select the correct answer if the underlined text does not make the statement correct. Select 'No change is needed" if the underlined text makes the statement correct.

  A. Static routing

  B. Default route

  C. Least cost routing

  D. No change is needed

  Correct Answer: D

  Dynamic routing protocols can be fault tolerant.

• Question 27:

  What is a similarity between Layer 2 and Layer 3 switches?

  A. Both provide a high level of security to the network.

  B. Both use logical addressing to forward transmissions.

  C. Both forward packets onto the network.

  D. Both allow the implementation of VLANs.

  Correct Answer: D

  A single layer-2 network may be partitioned to create multiple distinct broadcast domains, which are mutually isolated so that packets can only pass between them via one or more routers; such a domain is referred to as a virtual local area

  network, virtual LAN or VLAN.

  LANs are layer 2 constructs, so they can be supported by both Layer 2 and Layer 3 switches.

  Incorrect:

  Not A: Layer 2 switches do not provide high level of security.

  Not B: Another name for logical address is IP address. Only Layer 3 switches uses IP address. Layer 2 switches uses MAC addresses.

  Not C: only Layer 3 switches forward packets on the network (like routers).

• Question 28:

  Which of these cable types transmits data the greatest distance?

  A. Multi-mode fiber

  B. Single-mode fiber

  C. Cat5e

  D. Cat6

  Correct Answer: B

  When working with distances up to 2 km, use multimode optical-fiber cable.

  Like multi-mode optical fibers, single mode fibers do exhibit modal dispersion resulting from multiple spatial modes but with narrower modal dispersion. Single mode fibers are therefore better at retaining the fidelity of each light pulse over

  longer distances than multi-mode fibers.

  Incorrect:

  Cat5e and Cat6 max cable length is 100 metres.

• Question 29:

  What is the maximum cable length for a single Cat5 UTP cable run?

  A. 285 feet/86.87 meters

  B. 328 feet/99.97 meters

  C. 432 feet/131.67 meters

  D. 600 feet/182.88 meters

  Correct Answer: B

  Cat5/5e/6 Ethernet Copper Cabling has a Maximum Segment Length of 100 Meters.

• Question 30:

  Which network device interconnects computers in a workgroup, is able to be remotely configured, and provides the best throughput?

  A. Unmanaged switch

  B. Hub

  C. Router

  D. Managed switch

  Correct Answer: D

  Managed switches ?these switches have one or more methods to modify the operation of the switch. Common management methods include: a command-line interface (CLI) accessed via serial console, telnet or Secure Shell, an embedded

  Simple Network Management Protocol (SNMP) agent allowing management from a remote console or management station, or a web interface for management from a web browser.

  Incorrect:

  not A: Unmanaged switches are basic plug-and-play switches with no remote configuration, management, or monitoring options, although many can be locally monitored and configured via LED indicators and DIP switches.

  Not B: Hubs cannot be managed.

  Not C: Switches are faster than routers.