1. A network is very congested. Currently all the devices are connected through a hub. Which solution would best decrease congestion on the network?
A. Add a second hub
B. Replace the hub with a router.
C. Replace the hub with a switch.
D. Replace the hub with a repeater.

I would have thought replacing the hub with a switch, as the router could cause bottlenecks, but I have heard using a Router is potentially the recommendation.

2. The exhibit shows the Cisco routers startup messages.
Which group of messages identifies the router components that you can configure during set up the initial system configuration?
A) System Bootstrap, Version 11.3(1)XA, PLATFORM SPECIFIC RELEASE SOFTWARE (fc1) Copyright (c) 1998 by cisco Systems, Inc, CS2600 platform with 32768 Kbytes of main memory
B) Rp,,pm 1 b f program load complete, entry point: 0x800008000, size: 0xef4e0 Self decompressing the image :############################[OK]
C) Notice: NVRAM invalid, possible due to write erase,
program load complete, entry point:0x80008000, size 0x415b20 Self decompressing the image: ###################################
##########################################################[OK]
Restricted Rights Legend….(abridged)
D) Cisco Internetwork Operating System Software
IOC (tm) C2600 Software (C2600-JS-M), Version 11.3(2)XA,
PLATFORM SPECIFIC RELEASE SOFTWARE (fc1)
Copyright 1996-1998 by Cisco Systems Inc.
Compiled 10-Mar-98 14:25 by gneale
Image text-bas: 0x80008084, database: 0x809CD49C
E) Cisco 2611 (MP C860) processor (revision 0x100) with 24576K/8192K bytes of memory,
Processor board ID 04614954
M860 processor, part number 0 mask 32,
Bridging software, X25 software, Version 3.0.0,
2 Ethernet/IEEE 802.3 interface(s)

I have little idea as to whether D or E is correct. I have scoured the Sybex and ICND books to little avail. I understand that D shows the code image running, and I also understand why it cannot be A,B or C...but can I rule out E?

3. You telnet to a host on a remote network. Which MAC address will be present in the ARP table when you issue the show arp command?
A. MAC address of the destination host Ethernet port.
B. MAC address of the local router Ethernet port
C. MAC address of the destination router Serial port
D. MAC address of the local router Serial Port

I would say B as an ARP broadcast will not traverse routers... but I may be missing something?

4. What is the purpose of Spanning-Tree in a switched LAN?
A. To provide a mechanism for network monitoring in switched environments.
B. To prevent routing loops in networks with redundant paths.
C. To prevent routing switching loops in networks with redundant switched paths.
D. To manage, the addition, deletion, and naming of VLANs across multiple switches.
E. To segment a network into multiple collision domains.

I am leaning toward C as we are dealing with switching, but B doesn't seem entirely incorrect either.

Any input/feedback/debates more than welcome :)

Thanks in advance

Marcus

the answer are

1. C
2. D
3. B
4. B

If anyone find wrong, please give me the explnation of the correct answer.

Carmen.