Hi All, By reading Jeff Doyle book I come across with the following
questions an I need some helpto better understand those. 1. If you have
the followings: Windows Size Sequence #
Ackovledge# 512
1444 1957 What numbers (Seq, Ack) the next
segment should have and what is the math corelation between them ? 2.
What means a PUSH flag on TCP ? 3 What is the purpose of ICMP messages? 4.
What are the features of SNMP ? 5. If you are Multihomed to two ISPs let
say you are AS3 and your ISPs are AS1 and AS7 like in this schema , and
you want to use AS1 as a primary and AS7 as backup:
AS
4-----------------AS2--------AS1
|
|
|
|
AS5--------AS6-----AS7--------AS3 What can you ask your providers
AS1 and AS7 to do for you in order to accomodate your needs 1. By
using local preference attribute; 2. To use a
weight attribute 3. To use as-path
attribute 4.
ETC...ETC So , which is the best scenariouse too use? 6. What is
LE_ARP ? 7. In the followings OSPF area:
--------------------------|
|----------------| |--------------| AREA
50 | | AREA 4 | | AREA 0
|
| |
| | | |
| RTRA------/ | |
| | |
| /---------| ABR-|------RTRB----|
ABR|---RTRC | |
| | | |
|
-------------------------- -----------------
--------------- What do you need to do in order to connect RTRA
to Backbone Area ( 0) 1. a virtual link 2. Serial
link ; 3. ETC......; 8. What is ERLANG B? 9. On ISDN
debug , what means the message:
.......................config stack, may not have a
password...
....................................................................................
1. not authenticate; 2. ETC..... 10. What
means "LOOP UP" a DSU ? 11. It this network IP schema viable or not
? Why ? 233.245.152.0/24
10.12.0.0/16 233.245.152.0/24
|
| |
PC_A
--|------------------------RTR----------------------------|----PC_B
|
| | .12.
What is the corelations between a " JAM SIGNAL" and
"COLLISIONS"
13. If you have a router configured as a SAP server and a wkst is
sending queries (GNS) to him what the router will do ? Thank you
for your help. Mike
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