Answer / pavan kumar

HDLC and PPP are the protocols used in Leased lines and
also in ISDN.HDLC-High Level Data Control,PPP-Point To
Point Protocol.
mainly HDLC is cisco proprietary protocol and PPP is OSI
protocol.PPP checks for authorization.It inter=grates with
2 protocols PAP and CHAP.
PPP supports compression and HDLC doesnt support
compression.

Answer / shafi sache

HDLC(High-level Data Link Protocal)

1)HDlC is Data Link Layer Protocl and it is a Communication
Protocal .
2)HDLC is Cisco prperitry prtocal and Devloped by ISO and
it is delovped out of IBM'S SDLC(Synchronous Data Link
Protocol)
3)HDLC is superset of SDLC.
4)It supports only Synchronous comunication.
5)It has 3 transfer modes of Normal Response mode
(NRM),Asynchronous Response Mode(ARM),Asynchronous
Balanced Mode(ABM).

PPP(Point To Point Protocol)
1)It is used for direct Comunication between 2 nodes,it has
no transfer mode like HDLC.
2)PPP is type of HLDC .
3)It supportd encryption,authentication and Comparision.
4)Authenticaion Support by PAP (password authenticaion
protocol) and also by CHAP(Challange Handshake Protocal).
5)It is not a Cisco Proprietary.

Answer / durgesh singh rajput

ppp point to point is used in frame relay tech. HDLC is a
cisco made protocol used in leased line (WAN connection)i.e
in local loop.

Answer / arslan asif

1)-PPP(point to point network protocol)support user
authentication.e.g,PTCL asked user name & Password from
his/her client.
2)-HDLC(High level data link protocol)does't support user
authentication.It is used in Wan Connections.

Answer / abhi

Differences between HDLC and PPP are
(1) HDLC is cisco proprietary while PPP is an open standard.
(2) HDLC does not provide authentication while PPP provides authentication like PAP and CHAP.
(3) HDLC does not support compression while PPP support compression.
(4) HDLC supports synchronous networks only while PPP supports both synchronous and asynchronous networks.

Answer / umesh

HDLC and PPP are technologies that works with leased line
means dedicated line and
also in ISDN.HDLC-High Level Data link Control,PPP-Point To
Point Protocol.
mainly HDLC is cisco proprietary protocol and PPP is OSI
protocol.PPP It inter=grates with
2 protocols PAP and CHAP.
PPP supports compression and HDLC doesnt support
compression.

Answer / r

sejirej sern

The two sublayers of the IEEE Data Link Layer are which of the following? A.) Link and Logical Control B.) Data Link and LLC C.) Logical Link Control and Media Access Control D.) Data Link and MAC

3 Answers  

router

4 Answers   Infotech,

On which bas ospf take decision?

0 Answers  

What is an advantage of local area network (LAN) segmentation? A. smaller collision domains B. elimination of broadcasts C. decreased cost of implementation D. larger number of users within the same domain

1 Answers  

A server is running HTTP, SMTP and DHCP. Which of the following best explains how the server is able to handle all three services over the same connection? The server has separate buffer areas for each application and forwards all data to each service. If the data does not apply to that application, it is discarded. The server processes each packet one at a time and forwards the data to the application that indicates that it is waiting for a transmission to arrive. The data is discarded if it does not apply to that application. The server uses the destination port number in the TCP/UDP header to identify the service. The data is forwarded to the service identified by the port number. The server uses separate three-way handshake connections to control the flow of the data and relates the service to the proper connection. This relationship allows the server to pass the data to the proper service.

1 Answers  

which of the following address represent unicast address A 224.1.5.2 B ffff.ffff.ffff.ffff C 192.168.24.59/30 D 255.255.255.255 E 172.138.128.255 plz tell what should be answer plz tell with explanation

5 Answers   IPsoft, jetking,

Identify IPX SAP and it's purpose? A.) Sonet Access Pipe - interface to Sonet ring B.) Service Advertising Protocol - advertise services C.) Server Appletalk Protocol - appletalk directory services D.) Service Access Point - identify upper layer protocols

1 Answers  

Identify 2 transport layer protocols? A.) IP B.) TCP C.) CDP D.) ARP E.) UDP

1 Answers  

what is quota management?

2 Answers   HCL,

You have a Class B network address divided into 30 subnets. You will add 25 new subnets within the next year. You need 600 host IDs for each subnet. Which subnet mask should you use? A.) 255.254.0.0 B.) 255.192.0.0 C.) 255.255.252.0 D.) 255.255.248 0

1 Answers  

How many types of memories are used in cisco router?

0 Answers  

How does cut-through LAN switching work?

0 Answers