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What is osi reference model?
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What is the result of using a hierarchical addressing framework? A. increased availability of addresses B. decreased distance between routers C. increased router memory requirements D. no need to maintain routing information
Identify 3 LAN technologies? A.) FDDI B.) HDLC C.) HSSI D.) X.25 E.) 802.3 F.) 802.5
Which IP address and wildcard mask would you use in your ACL to block all the hosts in the subnet 192.168.16.43/28?
Differentiate between broadcast domain and collision domain
what is vlan
Which OSI layer supports the communication component of an application? A.) Data-Link B.) Physical C.) Session D.) Presentation E.) Application F.) Transport
What are four benefits that can result from applying ISDN networking? (Choose four) A. Full time connectivity across the ISDN is spoofed by Cisco IOS routers using dial on demand routing (DDR) B. Small Once and Home Once sites can be economically supported with ISDN Basic Rate Interface (BRI) servkps C. ISDN replaces Signaling System 7 (SS7) in the Public Switched Telephone Network (PSTIC) backbone D. ISDN can be used as a backup service for a leased line connection between the remote and central chaps E. Modem racking and cabling can be eliminated by integration of digital modem cards on Cisco IOS Network Acess Servers (NAS)
Which of these is the Private key? A. Bear B. Cave C. Indian D. Cowboy
What is the frame relay?
What utility can you use to see the path a packet takes through an internetwork? A.) Route B.) SNMP C.) Trace D.) Ping
Identify the purpose of the TCP 3 step handshake? A.) Setup a un-reliable connection B.) Initialize routing tables C.) Synchronize sequence numbers between hosts D.) Connection tear down process
as we know that isdn bri port come with either a u interface or some thing s/t interface what is the diffrenmce between them
CCNA 
