At which layer of OSI Model does a router work?
Presentation Layer 0.0%
Transport Layer 0.0%
Network Layer 100.0%
Datalink Layer 0.0%
Application Layer 0.0%
Physical Layer 0.0%
Session Layer 0.0%
Different routing protocols use different methods to calculate the distance to a network. What is that method called?
Administrative Distance 20.0%
Metric 60.0%
Routing Table 0.0%
None of the above 20.0%
How many access control lists can be applied on an interface?
One access control list in each direction for each protocol 0.0%
Two access control lists in each direction 100.0%
Unlimited 0.0%
Access control list cannot be applied on an interface 0.0%
How many bearer(B) and data(D) channel/s are there in a standard ISDN BRI service?
2B + 1D Channel 100.0%
23B + 1D Channel 0.0%
24B + 2D Channels 0.0%
16B + 1D Channel 0.0%
How many bits of a MAC address are used by OUI portion?
32 bits 0.0%
48 bits 0.0%
24 bits 100.0%
16 bits 0.0%
How many Broadcast Domains are there if two switches are connected to each other using a trunk link?
2 0.0%
1 100.0%
4 0.0%
None 0.0%
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?
RIP 0.0%
OSPF 0.0%
IGRP 0.0%
EIGRP 0.0%
Static Routing 100.0%
If interface Ethernet 0 is showing that it is administratively down, what will you do to turn it on?
Change the cable connected with Ethernet 0 0.0%
Restart the route 0.0%
Execute 'no shutdown' command 100.0%
Execute 'clock rate ' command 0.0%
If UDP receives datagrams that are not in sequence, what will it do?
It will drop datagrams that are not in sequence 40.0%
It will arrange them in sequence using sequence numbers 0.0%
It will request source host to resend datagrams 0.0%
None of the above 60.0%
If you set bandwidth of 64 kbps on an interface, what will be it's cost in OSPF?
256 0.0%
1563 100.0%
1024 0.0%
2096 0.0%
In which of the following modes does a switch not participate in VTP domain, but still forwards VTP advertisements by trunk links?
Server 0.0%
Domain 0.0%
Client 0.0%
Transparent 100.0%
In which of the following networks, are DR and BDR elected in OSPF?
Broadcast multi-access 66.0%
Point-to-point 0.0%
Nonbroadcast multi-access 33.0%
Point-to-multipoint 0.0%
On which layer of the OSI model do TCP & UDP work?
Transport Layer 100.0%
Session Layer 0.0%
Presentation Layer 0.0%
Network Layer 0.0%
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?
Host A's IP address is incorrect 0.0%
Router A's Ethernet 0 IP address is incorrect 0.0%
Host B's IP address is incorrect 33.0%
No routing is configured among the routers 66.0%
Routing protocols use a method to advertise many networks as one network to other routers. What is that method called?
Supernetting 75.0%
Summarization 25.0%
Subnetting 0.0%
None of the above 0.0%
State whether True or False: You can only create that number of VLANs which are equivalent to the number of ports on a switch.
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.
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
This access-list denies any Telnet traffic from network 192.168.10.0 255.255.255.0 0.0%
This access-list allows any IP traffic from any source to any destination 0.0%
This access-list denies any FTP traffic from network 192.168.10.0 255.255.255.0 100.0%
This access-list denies any FTP traffic to network 192.168.10.0 255.255.255.0 0.0%
What is the Administrative Distance (AD) of OSPF?
1 0.0%
120 0.0%
110 100.0%
90 0.0%
What is the binary value of 157?
11000111 0.0%
10111001 0.0%
11100011 0.0%
10011101 100.0%
What is the binary value of hex 9F?
10011111 100.0%
10111000 0.0%
11110001 0.0%
10001111 0.0%
What is the command for copying a router's IOS to a TFTP server?
copy ios tftp 0.0%
copy start tftp 0.0%
copy flash tftp 100.0%
copy flash-config tftp 0.0%
What is the command to configure PPP encapsulation on serial 0?
Router(config)# configure encapsulation ppp 0.0%
Router(config)# encapsulation ppp 0.0%
Router(config-if)# encapsulation ppp 100.0%
Router# encapsulation ppp serial 0 0.0%
What is the command to configure q933a as frame relay LMI type?
Router(config)# frame-relay lmi-type q933a 0.0%
Router# lmi-type q933a 0.0%
Router(config-if)# frame-relay lmi-type q933a 100.0%
Router(config-if)# lmi-type q933a 0.0%
What is the command to show Frame relay map table?
Router(config)# show frame-relay map 0.0%
Router# show frame-relay 0.0%
Router(config-router)# show frame-relay table 0.0%
Router# show frame-relay map 100.0%
What is the decimal equivalent of binary 11001110?
207 0.0%
250 0.0%
206 100.0%
192 0.0%
What is the default number of commands that a router can show if you execute 'show history' command?
15 0.0%
10 0.0%
20 75.0%
256 25.0%
What is the default value of bridge priority on Cisco switches?
65536 0.0%
16384 0.0%
32768 100.0%
256 0.0%
What is the default value of flush timers in IGRP?
630 seconds 75.0%
90 seconds 0.0%
270 seconds 0.0%
None of the above 25.0%
What is the full form of CSMA/CD?
Code Sense, Multiple Access with Collision Detection 0.0%
Carrier Sense, Multiple Access with Code Division 0.0%
Collision Sense, Multiple Access with Carrier Detection 0.0%
Carrier Sense, Multiple Access with Collision Detection 100.0%
What is the full form of ISDN?
International Subscriber Digital Network 0.0%
International Services Digital Network 0.0%
Internet Services Digital Network 0.0%
Integrated Services Digital Network 100.0%
What is the hop count limit for OSPF?
15 50.0%
255 0.0%
256 25.0%
None 25.0%
What is the main purpose of creating VLANs?
They create single collision domain 0.0%
They provide fast speed to the LANs 0.0%
They break up the broadcast domain 100.0%
None of the above 0.0%
What is the maximum number of paths supported by IGRP for load balancing?
Fou 0.0%
Six 100.0%
Twelve 0.0%
Infinite 0.0%
What is the maximum number of subnets (usable) that you can create in a class B network?
16384 25.0%
32768 0.0%
65536 75.0%
Infinite 0.0%
What is the maximum number of valid IP addresses in a class B network?
65536 50.0%
65534 50.0%
256 0.0%
254 0.0%
What is the maximum speed supported by a standard ISDN BRI?
64 kbps 0.0%
128 kbps 100.0%
256 kbps 0.0%
1.544 mbps 0.0%
What is the network ID of IP address 172.16.40.0/20?
172.16.16.0 0.0%
172.16.36.0 0.0%
172.16.32.0 66.0%
172.16.0.0 33.0%
What is the OUI portion of MAC address B4-3F-95-5F-1D-09 in binary?
10110100-00111111-10010101 100.0%
11100110-11001001-01110011 0.0%
11000011-10000111-11110001 0.0%
00111100-10010001-10111001 0.0%
What is the speed of a T1 line?
128 kbps 0.0%
144 kbps 0.0%
2.048 Mbps 0.0%
1.544 Mbps 100.0%
What is the speed of ISDN PRI service with 30B +1D channel?
2.048 Mbps 100.0%
1.544 Mbps 0.0%
144 Kbps 0.0%
128 Kbps 0.0%
What is the subnetwork to which IP address 10.70.50.255/18 belongs?
10.70.10.0 0.0%
10.70.50.0 25.0%
10.70.32.0 0.0%
10.70.0.0 75.0%
10.0.0.0 0.0%
What should be the value of configuration register in a router to boot IOS image stored in ROM?
0x2102 100.0%
0x2101 0.0%
0x2142 0.0%
0x101 0.0%
What will be the command for standard access control list to deny a single source address 10.15.12.2?
access-list 50 deny 10.0.0.0 255.255.255.0 0.0%
access-list 50 deny 10.15.12.2 0.255.255.255 0.0%
access-list 50 deny host 10.15.12.2 100.0%
access-list 50 deny 10.15.12.2 255.255.255.255 0.0%
What will happen if you declare an interface as passive interface in IGRP routing protocol?
The router will stop sending and receiving any dynamic updates 0.0%
The router will stop sending any dynamic updates but can still receive updates 0.0%
The interface will stop receiving any dynamic updates 0.0%
The interface will stop sending any dynamic updates but can still receive updates 100.0%
Which area must be present to connect two different areas in an OSPF network?
Area 0 100.0%
Area 51 0.0%
Area 1 0.0%
Area 16 0.0%
Which command is used to configure the configuration-register of a router?
Router(config)# config-register 0x2102 100.0%
Router# config-register 0x2102 0.0%
Router(config-line)# config-register 0x2102 0.0%
Router(config-router)# config-register 0x2102 0.0%
Which command is used to disable domain lookup?
no ip domain-lookup 100.0%
disable domain-lookup 0.0%
no domain-lookup 0.0%
None of the above 0.0%
Which command is used to encrypt all the passwords of a router?
enable password-encryption 0.0%
service password-encryption 100.0%
encrypt passwords 0.0%
enable encrypt-password 0.0%
Which command is used to view IP routing table?
show ip table 0.0%
show route 0.0%
show ip route 100.0%
show routing table 0.0%
Which command is used to view the list of all active connections made to the console and VTY ports of your router?
show session 0.0%
show connections 0.0%
show lines 0.0%
show users 100.0%
Which command will disable CDP on a router?
no cdp run 100.0%
disable cdp 0.0%
no cdp enable 0.0%
no cdp route 0.0%
Which command will you execute to see whether the cable attached with your router's Serial 0 is DCE or DTE?
show controllers serial 0 33.0%
show interface serial 0 66.0%
show ip interface serial 0 0.0%
show interface brief serial 0 0.0%
Which command will you use to configure IP address on an interface?
Router(config-if)# ip 192.168.1.1 255.255.255.0 0.0%
Router(config-if)# ip address 192.168.1.1 0.0%
Router(config-if)# ip address 192.168.1.1/24 0.0%
Router(config-if)# ip address 192.168.1.1 255.255.255.0 100.0%
Router(config-if)# ip address 192.168.1.1 subnet 255.255.255.0 0.0%
Which command will you use to enable default routing on a router?
outer(config)# ip route 255.255.255.255 0.0.0.0 172.16.0.1 0.0%
outer(config)# ip route default 0.0.0.0 0.0.0.0 172.16.0.1 0.0%
outer(config)# ip route 0.0.0.0 0.0.0.0 172.16.0.1 100.0%
outer# ip route 0.0.0.0 0.0.0.0 172.16.0.1 0.0%
Which command will you use to view sending and receiving of RIP update packets that normally run in the background ?
Router(config-router)# debug ip rip 0.0%
Router# debug rip packets 0.0%
Router# debug ip rip 33.0%
Router(config)# show rip packets 66.0%
Which encapsulation method will you choose if you want to connect a Cisco router and a non Cisco router with a serial connection?
HDLC 0.0%
PPP 100.0%
LAPD 0.0%
LAPB 0.0%
Which information is exchanged by Cisco devices on which CDP is running?
Routing Tables 0.0%
Platform 75.0%
Traffic Data 25.0%
Capabilities List 0.0%
Username & Password 0.0%
Which is the command to view all available commands in the mode you are working in?
show all 0.0%
? 100.0%
help 0.0%
help commands 0.0%
Which is the default mode of operation in a VTP domain for all catalyst switches?
Client 0.0%
Server 66.0%
Transparent 0.0%
None of the above 33.0%
Which key combination is used to interrupt the boot sequence of a router?
Esc + Ctrl 0.0%
Ctrl + Z 0.0%
Ctrl + Break 100.0%
Alt + Ctrl + Del 0.0%
Which layer of OSI model encapsulates packets into frames?
Transport Layer 0.0%
Data Link Layer 100.0%
Network Layer 0.0%
Physical Layer 0.0%
Which of the following addresses is reserved for loopback tests?
10.0.0.1 0.0%
172.16.0.1 0.0%
192.168.0.1 0.0%
127.0.0.1 100.0%
Which of the following are examples of the Data Link Layerr?
Token Ring 28.0%
IP 0.0%
Ethernet 42.0%
MAC 28.0%
IPX 0.0%
Which of the following are frame relay LMI types?
DLCI 0.0%
Cisco 60.0%
IEEE 802.1Q 0.0%
Q933A 40.0%
Which of the following are stored in RAM?
Startup-config 0.0%
Running-config 50.0%
Routing Table 25.0%
All of the above 25.0%
Which of the following cables is not prone to electrical interferences?
Shielded Twisted Pair (STP) 0.0%
Unshielded Twisted Pair (UTP) 0.0%
Fiber Optic 100.0%
Copper wire 0.0%
Coaxial 0.0%
Which of the following commands show Cisco IOS image file name?
show startup 0.0%
show running 0.0%
show version 100.0%
show history 0.0%
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?
access-list 150 permit tcp host 172.16.0.5 host 192.168.10.2 eq 23 100.0%
access-list 150 deny tcp host 172.16.0.5 host 192.168.10.2 eq 23 0.0%
access-list 150 permit tcp any any 0.0%
access-list 150 permit ip any any eq 23 0.0%
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?
access-list 115 deny tcp 172.16.16.0 255.255.240.0 any eq 23 0.0%
access-list 115 deny tcp 172.16.16.0 0.0.16.255 any eq 23 0.0%
access-list 115 deny tcp 172.16.16.0 0.0.15.255 any eq 21 0.0%
access-list 115 deny tcp 172.16.16.0 0.0.15.255 any eq 23 100.0%
Which of the following commands will you use to enable RIP version 2 on your router?
Router(config)# version 2 0.0%
Router(config-router)# version 2 100.0%
Router(config-if)# version 2 0.0%
Router# rip version 2 0.0%
Which of the following devices can be connected using a Rollover cable?
Router Ethernet Port to Router Ethernet Port 0.0%
Switch Console Port to PC COM Port 50.0%
Switch Ethernet Port to Switch Ethernet Port 0.0%
Router Ethernet Port to Switch Ethernet Port 0.0%
Router Console Port to PC COM Port 50.0%
Which of the following devices can be connected using a straight cable?
Hub & Switch 0.0%
Router & PC 33.0%
PC & PC 0.0%
Router & Switch 66.0%
Which of the following devices is used to connect a non ISDN device with an ISDN network?
NT1 0.0%
TE2 0.0%
TA 66.0%
TE1 33.0%
Which of the following Protocols work on Application Layerr of OSI model?
HTTP 50.0%
FTP 50.0%
IP 0.0%
UDP 0.0%
Which of the following provides routing protocol support for IPX, Appletalk and IP networks simultaneously?
RIP v2 0.0%
OSPF 0.0%
IGRP 0.0%
EIGRP 100.0%
Which of the following ranges are reserved as private addresses?
192.168.0.0 – 192.255.255.255 25.0%
172.16.0.0 – 172.255.255.255 0.0%
10.0.0.0 – 10.255.255.255 37.0%
172.16.0.0 – 172.31.255.255 37.0%
Which of the following routing protocols are Cisco proprietary?
IGRP 40.0%
EIGRP 60.0%
OSPF 0.0%
RIP 0.0%
Which of the following routing protocols are distance vector routing protocols?
OSPF 0.0%
RIP 42.0%
EIGRP 14.0%
IGRP 42.0%
Which of the following routing protocols are not classless routing protocols?
EIGRP 0.0%
OSPF 0.0%
IGRP 50.0%
RIP v1 50.0%
Which of the following routing protocols support VLSM?
RIP v1 0.0%
RIP v2 33.0%
IGRP 0.0%
EIGRP 33.0%
OSPF 33.0%
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?
Static VLAN 0.0%
VMPS 33.0%
STP 66.0%
VTP 0.0%
Which of the following statements are true for inter VLAN communication?
A router that supports inter VLAN communication is required 0.0%
The router must support the same encapsulation method as supported by the switch 0.0%
If the router has only one Ethernet interface, sub-interfaces must be configured 0.0%
All of the above 100.0%
Which of the following statements is true regarding VLAN 1?
It is a default VLAN 0.0%
You cannot delete VLAN 1 0.0%
You cannot rename VLAN 1 0.0%
All of the above 100.0%
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?
255.255.255.255 0.0%
255.255.0.0 0.0%
255.255.255.0 0.0%
255.255.255.252 0.0%
255.255.255.254 100.0%
Which of the following switches support both ISL and 802.1Q encapsulation methods?
1900 0.0%
2950 0.0%
3550 66.0%
All of the above 33.0%
Which of the following switching methods forward the frame after reading the destination MAC address only?
Fast forward 0.0%
Cut-through 100.0%
Fragment free 0.0%
Store and forward 0.0%
Which of the following things are stored in RAM?
ARP Cache 0.0%
Running configuration 0.0%
Routing tables 0.0%
All of the above 100.0%
Which of the following VLANs is recommended by Cisco to be used as an administrative VLAN?
VLAN 0 0.0%
VLAN 1 100.0%
VLAN 1024 0.0%
VLAN 16 0.0%
Which one of the following addresses can be used as a host address for the subnet 192.168.50.16/28?
192.168.50.32 66.0%
192.168.50.16 0.0%
192.168.50.64 0.0%
192.168.50.30 33.0%
Which protocol uses port number 23?
FTP 0.0%
SMTP 0.0%
Telnet 100.0%
HTTP 0.0%
Which statement is true about RID (Router ID) in OSPF?
It is always the highest IP address of active interfaces 0.0%
It is the highest IP address of all configured loopback interfaces 0.0%
It is locally significant 100.0%
It is only used for election of DR 0.0%
Which subnet mask will you use to fulfill the requirements of all the departments if you are using a class C network?
255.255.255.0 100.0%
255.255.255.252 0.0%
255.255.255.224 0.0%
255.255.255.192 0.0%
255.255.255.128 0.0%
Which two factors are used by default for calculation of metric by EIGRP?
Bandwidth 37.0%
Hop Count 0.0%
Reliability 12.0%
Load 12.0%
Delay 37.0%
Which two statements are true about CHAP authentication method?
It is more secure than PAP 50.0%
It is supported by HDLC 0.0%
It is less secure than PAP 0.0%
It sends authentication messages periodically during the connection 50.0%
Which type of NAT uses different ports to map multiple IP addresses to a single global IP address?
Dynamic NAT 0.0%
NAT with overloading 100.0%
Static NAT 0.0%
All of the above 0.0%
You are not able to create a new VLAN and cannot delete or change existing VLANs on a switch. What could be the problem?
Trunk link is not configured properly 0.0%
The switch is in VTP Transparent mode 33.0%
The switch is in VTP Client mode 66.0%
None of the above 0.0%
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?
Router(config-router)# network 172.16.0.0 255.255.0.0 area 5 0.0%
Router(config)# network 172.16.0.0 0.0.255.255 area 5 0.0%
Router(config-router)# network 172.16.0.0 0.0.255.255 area 5 100.0%
Router(config# ip route ospf 172.16.0.0 255.255.0.0 area 5 0.0%
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 pro...
The command 'copy run start' is incorrect 0.0%
The NVRAM is corrupt 0.0%
The value of configuration register is set to 0x2142 100.0%
Nothing is wrong, you have to configure the router every time it restarts 0.0%