ConfigureTerminal.com Free CCENT & CCNA Questions of the day - 8 November 2007

CCENT Question:

What is the hexadecimal equivalent of decimal 193?

A) CC
B) D1
C) E2
D) C1
E) F1
F) D2


Answer: D

To work this out, firstly convert 193 into binary
Decimal = 193
Binary = 11000001

Then split the binary into groups of 4 bits: 1100 0001
Now, convert each to hex.

Hex values are 0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F
HEX = DECIMAL
0 0
1 1
2 2
3 3
4 4
5 5
6 6
7 7
8 8
9 9
A 10
B 11
C 12
D 13
E 14
F 15

Taking the first group: 1100
This is 12 in decimal, which = C in hex.
The second group 0001 is 1 in decimal, which = 1 in hex.
Put them together = C1


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


Answers: B, C, E

Stub areas are shielded from external routes but receive information about networks that belong to other areas of the same OSPF domain. You can define totally stubby areas. Routers in totally stubby areas keep their LSDB-only information about routing within their area, plus the default route.

Not-so-stubby areas (NSSAs) are an extension of OSPF stub areas. Like stub areas, they prevent the flooding of AS-external link-state advertisements (LSAs) into NSSAs, relying instead on default routing to external destinations. As a result, NSSAs (like stub areas) must be placed at the edge of an OSPF routing domain. NSSAs are more flexible than stub areas in that an NSSA can import external routes into the OSPF routing domain, thereby providing transit service to small routing domains that are not part of the OSPF routing domain.


To your success,
David Bombal
CCIE #11023, CCSI, CCDP, CCIP, CCNP, CCSP, CCVP
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