Filter
Top Products
640 - 607
Leading the way in IT testing and certification tools, www.testking.com
- 139 -
C. The data packet is independently routed and the service does not guarantee the packet will be processed
in order.
D. A data communication path is established between the requesting entity and the peer device on the
remote end system.
Answer: A, B, D.
Explanation:
In order to establish a connection-orientated service, the connection must first be established. An example of
this would the TCP/IP suites use of the three-way handshake. The sending and receiving of synchronization
and acknowledgment packets between the sending system and the receiving system accomplish a three-way
handshake. Errors can be corrected when the sender does not receive an acknowledgment, within a specified
amount of time, from the receiving system the packet will be resent.
Incorrect Answers:
C is incorrect; due to the acknowledgement of packets, the order that packets are received is ensured.
Steve McQuerry. Interconnecting Cisco Network Devices. (Cisco Press: 2000) pages 29-30.
Q. 225
What are two purposes for using switches? (Choose two)
A. To reduce collisions
B. To increase collisions
C. To increase the number of collision domains
D. To decrease the number of collision domains
E. To decrease the number of broadcast domains
Answer: A, C.
Explanation:
A switch creates multiple collision domains, and reduces the number of nodes in the domain. This results in
less contention and interference which in turn reduces the number of collisions.
Incorrect Answers:
B is incorrect; switches are design to REDUCE collisions and not increase them.
D is incorrect; when a switch segments a network it increase the number of domain and it does not reduce them.
E is incorrect; a switch neither increase nor decreases the broadcast domains.
Steve McQuerry. Interconnecting Cisco Network Devices
. (Cisco Press: 2000) pages 30-31.
Q. 226