Wednesday, December 14, 2011

CCNA Day 4 & Day 5

CCNA Day-4 & day 5                                                                                                        








Please find the slides attached on the links below

http://www.4shared.com/folder/XIFiS6gR/_online.html   (entire folder content)

Day 4 --  Slides


http://www.4shared.com/office/xuo8XogC/Exploration_LAN_Switching_Chap.html

http://www.4shared.com/office/o-OPjMbs/Exploration_LAN_Switching_Chap.html

http://www.4shared.com/office/kB-xtlTK/Exploration_LAN_Switching_Chap.html

http://www.4shared.com/office/BnRlug6u/Exploration_LAN_Switching_Chap.html

http://www.4shared.com/office/ej00Ayu2/Exploration_LAN_Switching_Chap.html






Day 5 --

http://www.4shared.com/office/8J2yDBnN/Routing.html
http://www.4shared.com/office/2rS42uv9/Interface.html


CCNA Day-3                                                                                                        






Day 3 Slides - http://www.4shared.com/document/CTALmZnK/Day_3.html

Below lists popular modes in Cisco switch/router:
Router> User EXEC mode
Router# Privileged EXEC mode
Router(config)# Configuration mode
Router(config-if)# Interface level (within configuration mode)
Router(config-router)# Routing engine level (within configuration mode)
Router(config-line)# Line level (vty, tty, async) within configuration mode


Question 1

How does using the service password encryption command on a router provide additional security?
A. by encrypting all passwords passing through the router
B. by encrypting passwords in the plain text configuration file
C. by requiring entry of encrypted passwords for access to the device
D. by configuring an MD5 encrypted key to be used by routing protocols to validate routing exchanges
E. by automatically suggesting encrypted passwords for use in configuring the router


Question 2

Refer to the diagram. What is the largest configuration file that can be stored on this router?
R# show version
Cisco IOS Software. 1841 Software (C1841-IPBASE-M}, Version 12.4(1a), RELEASE SOFTWARE (fc2)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986*2005 by Cisco Systems, Inc.
Compiled Fri 27-May-0512:32 by hqluong
ROM: System Bootstrap. Version 12.3(8r)T8, RELEASE SOFTWARE (fc1)
N-East uptime is 5 days, 49 minutes
System returned to ROM by reload at 15:17:00 UTC Thu Jun 8 2006
System image file is “flash:c1841-ipbase-mz.124-1a.bin”
Cisco 1841 (revision 5.0) with 114688K/16384K bytes of memory.
Processor board ID FTX0932W21Y
2 FastEthernet interfaces
2 Low-speed serial(sync/async) interfaces
DRAM configuration is 64 bits wide with parity disabled.
191K bytes of NVRAM.
31360K bytes of ATA CompactFlash (Read/Write)
Configuration register Is 0×2102
R#
A. 191K bytes
B. 16384K bytes
C. 31369K bytes
D. 114688K bytes


Question 3

Which command shows system hardware and software version information?
A. show configuration
B. show environment
C. show inventory
D. show platform
E. show version


Question 4

Which command shows your active Telnet connections?
A. show sessions
B. show cdp neighbors
C. show users
D. show queue


 Question 5
Which command can you use to determine the cisco ios feature set on a cisco router?

A. show version
B. dir flash:include ios
C. show environment
D. show diag
E. show inventory

Question 6
A system administrator types the command to change the hostname of a router. Where on the Cisco IFS is that change stored?
A. NVRAM
B. RAM
C. FLASH
D. ROM
E. PCMCIA

Question 7
Before installing a new, upgraded version of the IOS, what should be checked on the router, and which command should be used to gather this information? (Choose two)
A. the amount of available ROM
B. the amount of available flash and RAM memory
C. the version of the bootstrap software present on the router
D. show version
E. show processes
F. show running-config


Question 8

Refer to the exhibit. A network administrator configures a new router and enters the copy startup-config running-config on the router. The network administrator powers down the router and sets it up at a remote location. When the router starts, it enter the system configuration dialog as shown. What is the cause of the problem?
— System Configuration Dialog —
Would you like to enter the initial configuration dialog? [yes/no]: % Please answer yes’ or ‘no’.
Would you like to enter the initial configuration dialog? [yes/ho]: n
Would you like to terminate autoinstall? [yes]:
Press RETURN to get started!
A. The network administrator failed to save the configuration.
B. The configuration register is set to 0×2100.
C. The boot system flash command is missing from the configuration.
D. The configuration register is set to 0×2102.
E. The router is configured with the boot system startup command.

Question 9
Which command is used to copy the configuration from RAM into NVRAM?
A. copy running-config startup-config
B. copy startup-config: running-config:
C. copy running config startup config
D. copy startup config running config
E. write terminal


Question10
Which command is used to load a configuration from a TFTP server and merge the configuration into RAM?
A. copy running-config: TFTP:
B. copy TFTP: running-config
C. copy TFTP: startup-config
D. copy startup-config: TFTP:


Question11
There are no boot system commands in a router configuration in NVRAM. What is the fallback sequence that router will use to find an IOS during reload?
A. Flash, TFTP server, ROM
B. Flash, NVRAM, ROM
C. ROM, NVRAM, TFTP server
D. NVRAM, TFTP server, ROM
E. TFTP server, Flash, NVRAM


Question12
Refer to the partial command output shown. Which two statements are correct regarding the router hardware? (Choose two)
system image file is “flash:c2600-do3s-mz.120-5.T1″
Cisco 2621 (MPC860) processor (revision 0×600) with 53248K/12288K bytes of memory
Processor board ID JAD05280307 (3536592999)
M860 processor: part number 0, mask 49
Bridging software.
X.25 software, version 3.0.0.
2 FastEthernet/IEEE 802.3 interface(s)
2 Serial(sync/async) network interface(s)
2 Low-speed serial(sync/async) network interface(s)
16 terminal line(s)
32K bytes of non-volatile configuration memory.
16384K bytes of processor board system flash (Read/Write)
A. Total RAM size is 32 KB
B. Total RAM size is 16384 KB (16 MB)
C. Total RAM size is 65536 KB (64 MB)
D. Flash size is 32 KB
E. Flash size is 16384 KB (16 MB).
F. Flash size is 65536 KB (64 MB)


Question13
What should be done prior to backing up an IOS image to a TFTP server? (Choose three)
A. Make sure that the server can be reached across the network.
B. Check that authentication for TFTP access to the server is set.
C. Assure that the network server has adequate space for the IOS image.
D. Verify file naming and path requirements.
E. Make sure that the server can store binary files.
F. Adjust the TCP window size to speed up the transfer.

Answers
1 - B
2 - A
3 - E
4 - A
5 - A
6 - B
7 - B,D
8 - A
9 - A
10 - B
11 - A
12 - C,E
13 - ACD

Saturday, November 26, 2011

IP Addressing and Subnetting                                                                             


Cisco Subnetting Guide

http://www.4shared.com/document/moDMGvHj/ipaddressing.html

Other sources

http://www.learntosubnet.com/

CCNA Day-2                                              


Day 2   :  http://www.4shared.com/document/U6h-9cuG/Day_2.html

1)


2) Given a subnet mask of 255.255.255.224, which of the following addresses can be assigned to network hosts? (Choose three)
A – 15.234.118.63
B – 92.11.178.93
C – 134.178.18.56
D – 192.168.16.87
E – 201.45.116.159
F – 217.63.12.192


3) Which of the following host addresses are members of networks that can be routed across the public Internet? (Choose three)
A – 10.172.13.65
B – 172.16.223.125
C – 172.64.12.29
D – 192.168.23.252
E – 198.234.12.95
F – 212.193.48.254


4) Which of the following IP addresses fall into the CIDR block of 115.64.4.0/22? (Choose three)
A – 115.64.8.32
B – 115.64.7.64
C – 115.64.6.255
D – 115.64.3.255
E – 115.64.5.128
F – 115.64.12.128


5) Refer to the diagram. All hosts have connectivity with one another. Which statements describe the addressing scheme that is in use in the network? (Choose three)
VLAN_IP_Assignment.jpg
A – The subnet mask in use is 255.255.255.192.
B – The subnet mask in use is 255.255.255.128.
C – The IP address 172.16.1.25 can be assigned to hosts in VLAN1.
D – The IP address 172.16.1.205 can be assigned to hosts in VLAN1.
E – The LAN interface of the router is configured with one IP address.
F – The LAN interface of the router is configured with multiple IP addresses.


 6)Refer to the exhibit. In this VLSM addressing scheme, what summary address would be sent from router A?
VLSM_summary.jpg
A. 172.16.0.0/16
B. 172.16.0.0/20
C. 172.16.0.0/24
D. 172.32.0.0/16
E. 172.32.0.0/17
F. 172.64.0.0/16



7) On the network 131.1.123.0/27, what is the last IP address that can be assigned to a host?

A. 131.1.123.30
B. 131.1.123.31
C. 131.1.123.32
D. 131.1.123.33


8) For the network 192.0.2.0/23, which option is a valid IP address that can be assigned to a host?
A. 192.0.2.0
B. 192.0.2.255
C. 192.0.3.255
D. 192.0.4.0


9) How many addresses for hosts will the network 124.12.4.0/22 provide?
A. 510
B. 1022
C. 1024
D. 2048


10) The network default gateway applying to a host by DHCP is 192.168.5.33/28. Which option is the valid IP address of this host?
A. 192.168.5.55
B. 192.168.5.47
C. 192.168.5.40
D. 192.168.5.32
E. 192.168.5.14


11) Which two addresses can be assigned to a host with a subnet mask of 255.255.254.0? (Choose two)
A. 113.10.4.0
B. 186.54.3.0
C. 175.33.3.255
D. 26.35.2.255
E. 17.35.36.0


12) Workstation A has been assigned an IP address of 192.0.2.24/28. Workstation B has been assigned an IP address of 192.0.2.100/28. The two workstations are connected with a straight-through cable. Attempts to ping between the hosts are unsuccessful. What two things can be done to allow communications between the hosts? (Choose two)

A. Replace the straight-through cable with a crossover cable.
B. Change the subnet mask of the hosts to /25.
C. Change the subnet mask of the hosts to /26.
D. Change the address of Workstation A to 192.0.2.15.
E. Change the address of Workstation B to 192.0.2.111.


13) Your ISP has given you the address 223.5.14.6/29 to assign to your router’s interface. They have also given you the default gateway address of 223.5.14.7. After you have configured the address, the router is unable to ping any remote devices. What is preventing the router from pinging remote devices?

A. The default gateway is not an address on this subnet.
B. The default gateway is the broadcast address for this subnet.
C. The IP address is the broadcast address for this subnet.
D. The IP address is an invalid class D multicast address.


14) Refer to the exhibit. The user at Workstation B reports that Server A cannot be reached. What is preventing Workstation B from reaching Server A?
subnetting_gateway.jpg

A. The IP address for Server A is a broadcast address.
B. The IP address for Workstation B is a subnet address.
C. The gateway for Workstation B is not on the same subnet.
D. The gateway for Server A is not on the same subnet.



15) Given the address 192.168.20.19/28, which of the following are valid host addresses on this subnet? (Choose two)
A. 192.168.20.29
B. 192.168.20.16
C. 192.168.20.17
D. 192.168.20.31
E. 192.168.20.0


16) You are working in a data center environment and are assigned the address range 10.188.31.0/23. You are asked to develop an IP addressing plan to allow the maximum number of subnets with as many as 30 hosts each.Which IP address range meets these requirements?

A. 10.188.31.0/27
B. 10.188.31.0/26
C. 10.188.31.0/29
D. 10.188.31.0/28
E. 10.188.31.0/25


17) In the implementation of VLSM techniques on a network using a single Class C IP address, which subnet mask is the most efficient for point-to-point serial links?
A. 255.255.255.240
B. 255.255.255.254
C. 255.255.255.252
D. 255.255.255.0
E. 255.255.255.248


18)  Refer to the exhibit. HostA cannot ping HostB. Assuming routing is properly configured, what could be the cause of this problem?
subnetting_2.jpg
A. HostA is not on the same subnet as its default gateway.
B. The address of SwitchA is a subnet address.
C. The Fa0/0 interface on RouterA is on a subnet that can’t be used.
D. The serial interfaces of the routers are not on the same subnet.
E. The Fa0/0 interface on RouterB is using a broadcast address.


19) The network administrator is asked to configure 113 point-to-point links. Which IP addressing scheme best defines the address range and subnet mask that meet the requirement and waste the fewest subnet and host addresses?
A. 10.10.0.0/18 subnetted with mask 255.255.255.252
B. 10.10.0.0/25 subnetted with mask 255.255.255.252
C. 10.10.0.0/24 subnetted with mask 255.255.255.252
D. 10.10.0.0/23 subnetted with mask 255.255.255.252
E. 10.10.0.0/16 subnetted with mask 255.255.255.252


20) If an Ethernet port on a router was assigned an IP address of 172.1.1.1/20, what is the maximum number of hosts allowed on this subnet?
A. 4094
B. 1024
C. 8190
D. 2046
E. 4096




CCNA Day-1                                                                 


Teaching Slides
Slide -1  http://www.4shared.com/document/sEfPfZEI/day1-1.html

Slide -2 http://www.4shared.com/document/r-FW7LWp/day1-2.html
1) Which of the following statements describe the network shown in the graphic? (Choose two)

A   There are two broadcast domains in the network.
B. There are four broadcast domains in the network.
C. There are six broadcast domains in the network.
D. There are four collision domains in the network. 
E. There are five collision domains in the network.
F. There are seven collision domains in the network.



2) For what two purposes does the Ethernet protocol use physical addresses? (Choose two)    A. to uniquely identify devices at Layer 2
   B. to allow communication with devices on a different network
   C. to differentiate a Layer 2 frame from a Layer 3 packet
   D. to establish a priority system to determine which device gets to transmit first
   E. to allow communication between different devices on the same network
   F. to allow detection of a remote device when its physical address is unknown


3) Refer to the exhibit. The two connected ports on the switch are not turning orange or green. What would be the most effective steps to troubleshoot this physical layer problem? (Choose three)
troubleshoot_physical_layer.jpg
A. Ensure that the Ethernet encapsulations match on the interconnected router and switch ports.
B. Ensure that cables A and B are straight-through cables.
C. Ensure cable A is plugged into a trunk port.
D. Ensure the switch has power.
E. Reboot all of the devices.
F. Re-seat all cables.


4) For which type of connection should a straight-through cable be used?
   A. switch to switch
   B. switch to hub
   C. switch to router
   D. hub to hub
   E. router to PC


5) Which type of cable is used to connect the COM port of a host to the COM port of a router or switch?
   A. crossover
   B. straight-through
   C. rolled
   D. shielded twisted-pair