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 CCNA interview questions  CCNA Interview Questions
 CCDA interview questions  CCDA Interview Questions
Question
How signalling can be explained in D channel of ISDN?
 Question Submitted By :: Sandp19
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  Re: How signalling can be explained in D channel of ISDN?
Answer
# 1
signalling chech the logical connectivity by using q.921 
lapd link access procedure on the d channel
 
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Meena
 

 
 
 
Other CCNA Interview Questions
 
  Question Asked @ Answers
 
what is the diffination of bandwidth.  1
Identify the prompt displayed if in privileged exec mode? A.) Router(config)# B.) Router# C.) Router> D.) Router(priv)#  2
can we measure how much a host exact bandwidth using by a network cable which is communicating over the network? options: 1- via Router 2- Switch, 3- other device... if yes.. then how ( with every option)  3
What is the default interval for SAP updates? A.) 60 seconds B.) 15 seconds C.) 30 seconds D.) 120 seconds ACS1
how many pass word you can configure on cisco 2500 router HCL2
Which command sets IGRP as the routing protocol for autonomous system 100? A. Router(config)#igrp 100 B. Router(config)#network 100 C. Router(config)#router igrp 100 D. Router(config)#enable igrp 100  1
Which protocol will let neighbor routers know if your internetwork experienced congestion on a serial port? A.) BootP B.) IP C.) ICMP D.) ARP E.) FTP F.) RARP  1
Station A is transmitting data to station B, and expects an acknowledgment after every 400 bytes. After transmitting data for a while, the two stations determine the line is reliable and change to expecting and acknowledgement every 600 bytes. This is an example of (pick the best answer only): A.) BECN B.) Sliding Windows C.) Poison Reverse D.) Countdown timers E.) Split Horizon F.) Count to infinity  1
What is the juncture at which the CPE ends and the local loop portion of the service begins? A. Demarc B. CO C. Local loop D. Last-mile  1
10. Which STP state populates the MAC address table but doesn't forward data frames? A. Blocking B. Listening C. Learning D. Forwarding Cisco3
How do you view the routers current processor utilization? A.) show version B.) show processes cpu C.) show running-config D.) show startup-config E.) show cpu F.) show utilization Cisco3
Which command will display adjacent routers found by the Cisco Discovery Protocol? A.) show all B.) show cdp entry C.) show ip neighbors D.) show cdp neighbor detail E.) show cdp neighbor F.) show neighbor  1
the term which used for describe physical alyout of network mine answer-topology  1
Which of the following is true regarding standard ISDN BRI service? A.) ISDN BRI B channels are typically 64K. B.) ISDN BRI can handle only voice. C.) ISDN BRI can handle only data. D.) ISDN BRI has 2B and 1D channels. E.) ISDN BRI D channels are 16K. F.) ISDN BRI can handle voice and data.  2
Which OSI layer incorporates the MAC address and the LLC? A.) Data link B.) Network C.) Physcial D.) Transport  1
Which addresses are valid host addresses? A. 201.222.5.17 B. 201.222.5.18 C. 201.222.5.16 D. 201.222.5.19 E. 201.222.5.31  2
what is used for passive intercae comand mine answer-to prevent to take update from outside  1
Identify the keystroke to position the cursor to the beginning of a command line? A.) Ctrl-A B.) Ctrl-Ins C.) Ctrl-B D.) Ctrl-Z  1
What are hold-downs used for? A.) To prevent regular update messages from reinstating a route that has come back up B.) Information received on an interface cannot be sent back out the same interface C.) To prevent regular update messages from reinstating a route that has gone down D.) To hold the routing table from being sent to another router  1
let there are three switch and there are 3 ree valn craed on each switch that is vlan 2 on first switch valn 3 on 2nd switch and vlan 4 is cretaed on switch 3 i have implemnted intervlan routin through ciso switchses. the router is conected through its fa0/1 port by one switch and and the two switch are trunked with each other now question is that we want to comuniacte betwwen vlan but does alse want that only vlan 2 is allow to access internet (ISP)which is conected through s0 interface of router.and no any vlan can access that internet.what should be solution.  1
 
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