Question:* Which of the following routing protocols support VLSM?
Answer: • RIP v2
Answer: • EIGRP
Answer: • OSPF
Question:* Which of the following devices can be connected using a Rollover cable?
Answer: • Switch Console Port to PC COM Port
Answer: • Router Console Port to PC COM Port
Question:* Which of the following ranges are reserved as private addresses?
Answer: • 10.0.0.0 – 10.255.255.255
Answer: • 172.16.0.0 – 172.31.255.255
Question:* Which two factors are used by default for calculation of metric by EIGRP?
Answer: • Bandwidth
Answer: • Delay
Question:* Which of the following routing protocols are not classless routing protocols?
Answer: • IGRP
Answer: • RIP v1
Question:* Which of the following Protocols work on Application Layerr of OSI model?
Answer: • HTTP
Answer: • FTP
Question:* Which two statements are true about CHAP authentication method?
Answer: • It is more secure than PAP
Answer: • It sends authentication messages periodically during the connection
Question:* Which of the following routing protocols are distance vector routing protocols?
Answer: • RIP
Answer: • IGRP
Question:* Which command is used to encrypt all the passwords of a router?
Answer: • service password-encryption
Question:* Which subnet mask will you use to fulfill the requirements of all the departments if you are using a class C network?
Answer: • 255.255.255.0
Question:* Which of the following addresses is reserved for loopback tests?
Answer: • 127.0.0.1
Question:* Which is the command to view all available commands in the mode you are working in?
Answer: • ?
Question:* Which command is used to view IP routing table?
Answer: • show ip route
Question:* Which command is used to disable domain lookup?
Answer: • no ip domain-lookup
Question:* Which of the following routing protocols are Cisco proprietary?
Answer: • EIGRP
Question:* Which command is used to configure the configuration-register of a router?
Answer: • Router(config)# config-register 0x2102
Question:* Which of the following commands will prevent telnet access from all users on subnet 172.16.16.0 with subnet mask 255.255.240.0 to any destination?
Answer: • access-list 115 deny tcp 172.16.16.0 0.0.15.255 any eq 23
Question:* What is the default value of flush timers in IGRP?
Answer: • 630 seconds
Question:* If UDP receives datagrams that are not in sequence, what will it do?
Answer: • None of the above
Question:* Which of the following commands will allow a single source address 172.16.0.5 to telnet a single destination address 192.168.10.2?
Answer: • access-list 150 permit tcp host 172.16.0.5 host 192.168.10.2 eq 23
Question:* Which command will disable CDP on a router?
Answer: • no cdp run
Question:* What is the default number of commands that a router can show if you execute 'show history' command?
Answer: • 20
Question:* Which is the default mode of operation in a VTP domain for all catalyst switches?
Answer: • Server
Question:* Which command will you use to enable default routing on a router?
Answer: • outer(config)# ip route 0.0.0.0 0.0.0.0 172.16.0.1
Question:* How many Broadcast Domains are there if two switches are connected to each other using a trunk link?
Answer: • 1
Question:* How many bits of a MAC address are used by OUI portion?
Answer: • 24 bits
Question:* Which area must be present to connect two different areas in an OSPF network?
Answer: • Area 0
Question:* What is the maximum number of valid IP addresses in a class B network?
Answer: • 65536
Question:* You made some changes in your router's configuration and executed the following command:
Router# copy run start
When you restarted your router it went into the Setup mode. What is the problem?
Answer: • The value of configuration register is set to 0x2142
Question:* Routing protocols use a method to advertise many networks as one network to other routers. What is that method called?
Answer: • Supernetting
Question:* What is the speed of a T1 line?
Answer: • 1.544 Mbps
Question:* What is the hop count limit for OSPF?
Answer: • 15
Question:* What is the main purpose of creating VLANs?
Answer: • They break up the broadcast domain
Question:* What is the maximum speed supported by a standard ISDN BRI?
Answer: • 128 kbps
Question:* What will be the command for standard access control list to deny a single source address 10.15.12.2?
Answer: • access-list 50 deny host 10.15.12.2
Question:* In which of the following networks, are DR and BDR elected in OSPF?
Answer: • Broadcast multi-access
Question:* Which of the following devices can be connected using a straight cable?
Answer: • Router & Switch
Question:* If a router has been configured for static routing, IGRP, OSPF, EIGRP and RIP with their default values, which routing will the router use to send data?
Answer: • Static Routing
Question:* What is the command to configure PPP encapsulation on serial 0?
Answer: • Router(config-if)# encapsulation ppp
Question:* On which layer of the OSI model do TCP & UDP work?
Answer: • Transport Layer
Question:* What should be the value of configuration register in a router to boot IOS image stored in ROM?
Answer: • 0x2102
Question:* Refer to the diagram.
Host A is not able to communicate with Host B. However, Router A can communicate with Host B. What could be the problem?
Answer: • No routing is configured among the routers
Question:* Which layer of OSI model encapsulates packets into frames?
Answer: • Data Link Layer
Question:* Which of the following are examples of the Data Link Layerr?
Answer: • Ethernet
Question:* If you set bandwidth of 64 kbps on an interface, what will be it's cost in OSPF?
Answer: • 1563
Question:* What is the command to configure q933a as frame relay LMI type?
Answer: • Router(config-if)# frame-relay lmi-type q933a
Question:* What is the full form of CSMA/CD?
Answer: • Carrier Sense, Multiple Access with Collision Detection
Question:* Which of the following are frame relay LMI types?
Answer: • Cisco
Question:* If interface Ethernet 0 is showing that it is administratively down, what will you do to turn it on?
Answer: • Execute 'no shutdown' command
Question:* In which of the following modes does a switch not participate in VTP domain, but still forwards VTP advertisements by trunk links?
Answer: • Transparent
Question:* Different routing protocols use different methods to calculate the distance to a network. What is that method called?
Answer: • Metric
Question:* What is the maximum number of subnets (usable) that you can create in a class B network?
Answer: • 65536
Question:* What is the speed of ISDN PRI service with 30B +1D channel?
Answer: • 2.048 Mbps
Question:* What is the binary value of hex 9F?
Answer: • 10011111
Question:* Which of the following switches support both ISL and 802.1Q encapsulation methods?
Answer: • 3550
Question:* Which command will you use to view sending and receiving of RIP update packets that normally run in the background ?
Answer: • Router(config)# show rip packets
Question:* What is the default value of bridge priority on Cisco switches?
Answer: • 32768
Question:* Which command will you execute to see whether the cable attached with your router's Serial 0 is DCE or DTE?
Answer: • show interface serial 0
Question:* Which of the following commands will you use to enable RIP version 2 on your router?
Answer: • Router(config-router)# version 2
Question:* Which of the following statements is true regarding VLAN 1?
Answer: • All of the above
Question:* At which layer of OSI Model does a router work?
Answer: • Network Layer
Question:* Which information is exchanged by Cisco devices on which CDP is running?
Answer: • Platform
Question:* Which of the following switching methods forward the frame after reading the destination MAC address only?
Answer: • Cut-through
Question:* You executed the following command on your router:
Router(config)# router ospf 15
Which command will you execute next to complete OSPF configuration on your router?
Answer: • Router(config-router)# network 172.16.0.0 0.0.255.255 area 5
Question:* Which of the following devices is used to connect a non ISDN device with an ISDN network?
Answer: • TA
Question:* Which of the following services can be used to set up a database of MAC addresses that can be used for dynamic addressing of VLANs?
Answer: • STP
Question:* Which command will you use to configure IP address on an interface?
Answer: • Router(config-if)# ip address 192.168.1.1 255.255.255.0
Question:* Which of the following provides routing protocol support for IPX, Appletalk and IP networks simultaneously?
Answer: • EIGRP
Question:* What is the subnetwork to which IP address 10.70.50.255/18 belongs?
Answer: • 10.70.0.0
Question:* What is the maximum number of paths supported by IGRP for load balancing?
Answer: • Six
Question:* What is the Administrative Distance (AD) of OSPF?
Answer: • 110
Question:* What will happen if you declare an interface as passive interface in IGRP routing protocol?
Answer: • The interface will stop sending any dynamic updates but can still receive updates
Question:* What is the binary value of 157?
Answer: • 10011101
Question:* What is the OUI portion of MAC address B4-3F-95-5F-1D-09 in binary?
Answer: • 10110100-00111111-10010101
Question:* Which one of the following addresses can be used as a host address for the subnet 192.168.50.16/28?
Answer: • 192.168.50.32
Question:* Which of the following subnet masks should you use on Router A and Router B serial links so that there is minimum wastage of IP addresses?
Answer: • 255.255.255.254
Question:* Which of the following are stored in RAM?
Answer: • Running-config
Question:* Which of the following commands show Cisco IOS image file name?
Answer: • show version
Question:* Which of the following statements are true for inter VLAN communication?
Answer: • All of the above
Question:* Which type of NAT uses different ports to map multiple IP addresses to a single global IP address?
Answer: • NAT with overloading
Question:* What do you understand from the following commands:
access-list 110 deny tcp 192.168.10.0 0.0.0.255 any eq 21
access-list 110 permit ip any any
Answer: • This access-list denies any FTP traffic from network 192.168.10.0 255.255.255.0
Question:* State whether True or False:
You can only create that number of VLANs which are equivalent to the number of ports on a switch.
Answer: • False
Question:* Which of the following VLANs is recommended by Cisco to be used as an administrative VLAN?
Answer: • VLAN 1
Question:* How many bearer(B) and data(D) channel/s are there in a standard ISDN BRI service?
Answer: • 2B + 1D Channel
Question:* What is the command to show Frame relay map table?
Answer: • Router# show frame-relay map
Question:* State whether True or False:
You have two routers connected with point-to-point links using different encapsulation methods. They will be able to communicate with each other.
Answer: • False
Question:* Which of the following things are stored in RAM?
Answer: • All of the above
Question:* Which statement is true about RID (Router ID) in OSPF?
Answer: • It is locally significant
Question:* Which encapsulation method will you choose if you want to connect a Cisco router and a non Cisco router with a serial connection?
Answer: • PPP
Question:* Which key combination is used to interrupt the boot sequence of a router?
Answer: • Ctrl + Break
Question:* Which command is used to view the list of all active connections made to the console and VTY ports of your router?
Answer: • show users
Question:* Which protocol uses port number 23?
Answer: • Telnet
Question:* What is the decimal equivalent of binary 11001110?
Answer: • 206
Question:* Which of the following cables is not prone to electrical interferences?
Answer: • Fiber Optic
Question:* How many access control lists can be applied on an interface?
Answer: • Two access control lists in each direction
Question:* What is the command for copying a router's IOS to a TFTP server?
Answer: • copy flash tftp
Question:* You are not able to create a new VLAN and cannot delete or change existing VLANs on a switch. What could be the problem?
Answer: • The switch is in VTP Client mode
Question:* What is the network ID of IP address 172.16.40.0/20?
Answer: • 172.16.32.0
Question:* What is the full form of ISDN?
Answer: • Integrated Services Digital Network
