Interested to Buy Any Domain ? << Click Here >> for more details...
How does a switch use store and forward?
A.) By using a Class I repeater in a collision domain
B.) The LAN switch copies the entire frame into its onboard
buffers and
then looks up the destination address in its forwarding, or
switching,
table and determines the outgoing interface
C.) By using broadcast addresses as source addresses
D.) The switch waits only for the header to be received
before it checks
the destination address and starts forwarding the packets
- 1 Answers
- 6080 Views
- I also Faced
- E-Mail Answers
Answer / guest
Answer: B
Store-and-Forward switching copies the entire frame into its
buffer and
computes the CRC. If a CRC error is detected, the frame is
discarded, or
if the frame is a runt (less than 64 bytes including the
CRC) or a giant
(more than 1518 bytes including the CRC). The LAN switch
then looks up
the destination address in its switching table and
determines the
outgoing interface. The frame is then forwarded to the outgoing
interface. Cisco Catalyst 5000 switches uses the
Store-and-Forward
method. The problem with Store-and-Forward switching is
latency is
increased. Latency also varies with the size of the frame.
The larger
the frame, the more latency associated. This of course is
due to the
fact that the entire frame is copied into its buffer before
being
forwarded.
| Is This Answer Correct ? | 7 Yes | 0 No |
which utility should use to test whether TCP/IP has been initialized on a system.friends plz post the answer with explaination..
X.25 is characterized by layer 2 identifiers, and what else? A.) Virtual Lan's B.) Session Layer C.) Transport Layer D.) Routing Updates E.) PVC's
You have just issued the erase startup-config Command and reloaded your router. In which mode will your router be when you react? A. setup B. startup C. user EXEC D. userd privileged E. global configuration
Write an access list line which will deny node 20.0.2.1 to anywhere on your network using DNS via UDP. Don't worry about the other access list lines.
Which OSI layer handles physical address, network topology? A.) Presentation B.) Physical C.) Transport D.) Application E.) Data-Link F.) Network
For IPX, what is the DEFAULT Cisco Encapsulation on an Ethernet interface? A.) novell-ether B.) gns C.) snap D.) arpa E.) sap F.) dix
Which two statements about the store and forward switching method are true? (Choose two) A. Latency remains constant regardless of frame size. B. Latency through the switch varies with frame length. C. The switch receives the complete frame before forwarding it. D. The switch checks the destination address as soon as it receives the header and begins forwarding the fram immediately.
routing information
Your company has been assigned the IP address of 201.222.5.0 and require having 20 subnets. As the company’s network administrator, find the following: a) the subnet mask (2 marks) b) the number of useable subnets (2 marks) c) the subnetwork address for the 4th subnet (2 marks) d) the first usable IP address for the 4th subnet (2 marks) e) the last usable IP address for the 4th subnet (2 marks) f) the broadcast address for the 4th subnet. (2 marks)
Which protocol works at the Internet layer and is responsible for making routing decisions? A.) UDP B.) IP C.) TCP D.) ARP
Which statement about the flow control function of TCP is true? A. TCP makes no snarl to check for lost or duplicate data packets B. The application layer must sequence data packets when using TCP C. TCP controls the flow of UDP data through negative acknowledgements (NAK) D. TCP is a connection-oriented protocol that acknowledges receipt of data packets and is considered reliable
Identify the mode reflected by the following prompt 'Router'? A.) Setup B.) RXBoot C.) Boot mode D.) Privileged exec mode
CCNA 
