Free CCENT & CCNA Questions of the day – Part 1

CCENT & ICND1 Question:

What protocol resolves an IP address to a MAC address?

A) Inverse-ARP

B) ARP

C) DNS

D) RARP

E) DHARP

F) RFC1918

Explanation:

Inverse-ARP – is used in Frame-Relay environments to map a remote router’s IP address to a local DLCI number.

ARP – This is the correct answer. Used in Ethernet environments to map another devices’ IP Address to a MAC address. Please see the following RFC for more information: RFC 826 – Ethernet Address Resolution Protocol: Or converting network protocol addresses to 48.bit Ethernet address for transmission on Ethernet hardware

DNS – is used to mapping a name to an IP Address. For instance PC1 to x.x.x.x (where x is an IP address)

RARP – this is used to obtain an IP address for a given MAC address. This is replaced by DHCP

DHARP – an imaginary protocol

RFC1918 – describes the use of private addresses like 10.0.0.0 to 10.255.255.255 and 172.16.0.0 to 172.31.255.255 and 192.168.0.0 to 192.168.255.255

Answer: B

CCNA & ICND2 Question:

What are valid OSPF stub types?

A) Backbone

B) Totally Stubby

C) Not So Stubby

D) So So Stubby

E) Stub

F) Stubby with summarization

Explanation:

The types “So So Stubby” and “Stubby with summarization” are just imaginary OSPF Stub – areas do not receive type 5 (external) LSAs from their ABRs

OSPF Totally Stubby areas – do not receive type 3 (summary link advertisements), 4 (summary link advertisements) or 5 (external) LSAs from their ABRs

Not So Stubby (NSSA) areas – are more flexible than stub areas as type 5 (external) LSAs are permitted through the NSSA area and can thus act as a transit area

Answers: B, C, E

Conclusion:

How did you get on? Remember to make sure you understand the answers. Don’t just learn and repeat them.

Good luck with your studies!

Author: David Bombal
Article Source: EzineArticles.com
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