# CCNA Questions

Q:

You have the following binary number :10110111. What are the decimal and hexadecimal equivalents?

 A) 69/0x2102 B) 183/B7 C) 173/A6 D) 83/0xC5

Explanation:

You must be able to take a binary number and convert it into both decimal and hexadecimal. To convert to decimal, just add up the 1s using their values. The values that are turned on with the binary number of 10110111 are 128+32+16+4+2+1=183. To get the hexadecimal equivalent, you need to break the eight binary digits into nibbles (4 bits), 1011 and 0111. By adding up these values, you get 11 and 7. In hexadecimal, 11 is B, so the answer is 0xB7.

Filed Under: CCNA

1 6835
Q:

Which OSI layer defines the standards for cabling and connectors?

 A) Layer 1 B) Layer 4 C) Layer 7 D) Layer 3

Explanation:

OSI layer 1 defines the standards for cabling and connectors.

Filed Under: CCNA
Job Role: Network Engineer

10 6812
Q:

An administrator issues the command "ping 127.0.0.1" from the command line prompt on a PC host named PC1. If an ICMP reply is received, what does this confirm?

A. The PC host PC1 has connectivity with a local host
B. The PC host PC1 has connectivity with a Layer 3 device
C. The PC host PC1 has a default gateway correctly configured
D. The PC host PC1 has connectivity up to Layer 5 of the OSI model
E. The PC host PC1 has the TCP/IP protocol stack correctly installed

Subject: CCNA

6740
Q:

How many bits are in an IPv6 address field?

 A) 24 B) 16 C) 32 D) 128

Explanation:

There are 16 bits (four hex characters) in an IPv6 field.

Filed Under: CCNA

0 6652
Q:

To enable OSPFv3, which of the following would you use?

 A) Router1 (config - if) # ipv6 ospf 10 area 0.0.0.0 B) Router1 (config - if) # ipv6 router rip 1 C) Router1 (config - if) # ipv6 router eigrp 10 D) Router1 (config - if) # ospf ipv6 10 area 0

Answer & Explanation Answer: A) Router1 (config - if) # ipv6 ospf 10 area 0.0.0.0

Explanation:

To enable OSPFv3, you enable the protocol at the interface level as with RIPng. The command string is ipv6 ospf proces-id area area-id.

Filed Under: CCNA

0 6586
Q:

To use VLSM, what capability must the routing protocols in use possess?

 A) Support for multicast B) Multi-protocol support C) Transmission of subnet mask information D) Support for unequal load balancing

Explanation:

To use VLSM, the routing protocols in use possess the capability to transmit subnet mask information.

Filed Under: CCNA

0 6475
Q:

Your company wants to reconfigure a Catalyst 2950. Which actions must be taken to erase the old configuration?(Choose three)

A. Erase flash
B. Restart the switch
C. Delete the VLAN database
D. Erase the startup configuration

Subject: CCNA

6419
Q:

Which of the following is an industry-wide standards suite of protocols and algorithms that allows for secure data transmission over an IP-based network that functions at the layer3 Network layer of the OSI model?

 A) HDLC B) xDSL C) VPN D) IPSec

Explanation:

IPSec is an industry-wide standard suite of protocols and algorithms that allows for secure data transmission over an IP-based network that functions at the layer3 Network layer of the OSI model.

Filed Under: CCNA

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