What is the difference between X.25 and Frame Relay explain
Answer / shikha dixit
There are various differences between X.25 and Frame Relay.
The most significant are:
1. Call Control
X.25 connection establishment and release (call control)
use in-band signaling within the same virtual channel used
for user data transmission causing additional overhead.
Frame Relay call control uses separate virtual channels
identified by reserved DLCI using the LMI (Local Management
2. Routing vs. Switching
X.25 performs packet switching on OSI layer 3 (network
layer); Frame Relay performs packet switching on OSI layer
2 (data-link). Frame Relay does not use any layer 3
3. Flow Control
Frame Relay (FR) doesn't perform flow control between frame
handlers (FR routers). X.25 routers have to acknowledge
each frame; in case of frame errors frames have to be
retransmitted and acknowledged. Frame Relay relies on flow
control performed by higher layer protocols
|Is This Answer Correct ?||22 Yes||5 No|
Which file holds the IP address of the default gateway ?
Where do Bridge, Router, repeater and Gateway sits on the OSI model?
Which layer does: flow control, windowing, error recovery ? a. data-link b. network c. transport d. session
Which freeware program will let you have fine-grain control over which machines can or can not telnet/rlogin into your machine ?
You have divided your class C network into 6 subnets. Your subnet mask is 255.255.255.224. What are the ranges of IPs for your subnets ? Your Network address before subnetting was 184.108.40.206 a. 32-62, 64-93, 96-125, 128-157, 160-189, 192-221 b. 33-63, 65-94, 97-126, 129-158, 161-190, 193-222 c. 34-64, 66-95, 98-127, 130-159, 162-191, 194-223 d. 35-65, 67-96, 99-128, 131-160, 163-192, 195-224
what is the difference between gsm and cdma
Explain Application Layer with the help of application layer protocol?
Which of the following is FQDN ? a. www.mydomain.com b. mydomain.com c. www.mydomain.com.
You want to connect 2 buildings together that are 1000 meters apart and communicate at 100 Mbps and provide some security on the cable. What do you choose? a. Fiber optic
The last octet of the broadcast address of a Class B network is :
Which layer enables users on different machines to establish sessions between them.
which value of "Flags" in the DHCP network database denotes a permanent lease ?