Cyber Monday Top Promotions

Microsoft Store is excited to announce their Cyber Monday deals!

 Shop Microsoft for great Cyber Monday deals!

Cyber Monday Top Promotions Include: 

• Save $100 on Acer Iconia for $399 Save $100 on Acer Iconia for $399Save up to 40% on select Xbox Games 

• Save $200 on the Asus Vivobook S400 for $499 Save $200 on the Asus Vivobook S400 for $499 

• Save $250 on the Vizio 14” ultrabook Save $250 on the Vizio 14” ultrabook 

• Save over $100 on the 250GB Kinect Sport Joy Ride Bundle Save over $100 on the 250GB Kinect Sport Joy Ride Bundle 

• Shop the Surface now! Shop for the Surface now!

CCNA questions - Part 12

Another 5 mixed networking Questions to mull over

1. What is the administrative distance of IGRP?

A) 110
B) 1
C) 120
D) 90
E) 100

2. What TCP/IP layer are Telnet, FTP, TFTP and SMTP protocols associated with?

A) Application
B) Host-to-Host / Transport
C) Internet
D) Network Access

3. What determines network addresses when data link addresses are known?

A) Ping
B) ICMP
C) ARP
D) RARP

4. What mode are you in when you see this prompt?
Router(config-router)#

A) user exec mode
B) privileged mode
C) global configuration mode
D) interface configuration mode
E) routing protocol configuration

5. What does Ethernet 0 is up, line protocol is down indicate?

A) Keepalive or framing issue
B) Carrier detect is not present
C) The interface is shutdown

-->

Clickbank Products

1. Correct Answer: E

IGRP has an administrative distance of 100.
Administrative distance is used by Cisco routers to select the best path when there are two
or more different routes to the same destination from two different routing protocols.
administrative distance defines the reliability of a routing protocol.

2. Correct Answer: A

3. Correct Answer: D

Reverse Address Resolution Protocol (RARP) is used by a host computer to request its IPv4
address from an administrative host, it provides the administrative host with its hardware
address (MAC address).
 
4. Correct Answer: E

Here is a summary of Cisco IOS router command prompts:

Router> - User EXEC mode
Router# - Privileged EXEC mode
Router(config)# - Global configuration mode
Router(config-if)# - Interface level configuration mode
Router(config-router)# - Routing engine level within configuration mode
Router(config-line)# - Line level (vty, tty, async) within configuration mode

5. Correct Answer: A

The various states of an interface:


Ethernet0 is up, line protocol is up - The interface is functioning correctly.

Ethernet0 is down, line protocol is down - This message usually represents a physical
interface problem. The cable may be disconnected. This can also occur if this interface is
connected to another router whose interface has been shutdown.

Ethernet0 is up, line protocol is down - The Physical layer connectivity is not the issue.
The line protocol being down is either a clocking issue (keepalives) or a mismatch of the
frame types being used on connected devices. 

 
  “Successful people are always looking for opportunities to help others. Unsuccessful people are always asking, "What's in it for me?"”

    Brian Tracy 

CCNA Questions - Part 11

Another Batch of Questions to have a look at - enjoy.





1. What WLAN standard operates in the 2.4GHz band with a data rate of up to 11Mbps?

A) 802.11a
B) 802.11b
C) 802.11g
D) 802.11h
E) 802.11n

2. What WLAN standard operates in the 5GHz band with a data rate of up to 54Mbps?

A) 802.11a
B) 802.11b
C) 802.11g
D) 802.11h
E) 802.11n

3. What is the administrative distance of RIP?

A) 110
B) 1
C) 120
D) 90
E) 100

4. What is the maximum number of subnets given the following?

192.168.10.0
255.255.255.192

(Assume ip subnet-zero is enabled)


A) 4
B) 8
C) 16
D) 32
E) 64

5. What IOS command would disable CDP on all interfaces of a Cisco router?


A) no cdp enable
B) disable cdp
C) no cdp
D) no cdp run

1. Correct Answer: B

802.11b is the most widely deployed wireless standard and operates in the 2.4GHz band with
a data rate of up to 11Mbps.

2. Correct Answer: A

802.11a operates in the 5GHz band with a data rate of up to 54Mbps and is immune to
interference from other devices operating in the 2.4GHz spectrum.

3. Correct Answer: C

Here in the question the A is administrative distance 110 for OSPF, B is 1 for Static
Route, D is 90 for Internal EIGRP, E is 100 for IGRP so the last C is 120 for RIP. Here You
must be carefull for Internal and External EIGRP's administrative distance and Internal and
xternal BGP. 

4. Correct Answer: A

192.168.10.0 is a class C address.  The subnet mask 255.255.255.192 implies 2 bits are
borrowed. 22 = 4 subnets

5.Correct Answer: D

no cdp run - When disabling a command you use "no" form of the command 

-->

Clickbank Products

Spanning Tree protocol

Span Tree - nothing to do with coconuts...

 1. What does the Spanning Tree Protocol achieve?

A) Determines a loop free topology
B) Sets up a meshed switched topology
C) Creates bridge loops and broadcast storms
D) Disseminates VLAN topology

2. What does the following statement do?Switch(config-if)#spanning-tree portfast disable

A) Disables spanning-tree on the switch port
B) Disable spanning tree on the switch
C) Changes the spanning-tree switch to portfast mode

 
1.  Answer: A
 
2. Answer: A

Portfast is a method of disabling STP on a switch port.

Summary

STP (Spanning Tree protocol) is used at layer 2 to prevent routing loops for frames on switches with multiple connections. Without STP, imagine 2 switches connected together with 2 separate Ethernet cables, a frame passes from one switch to the other over cable number 1. Switch 2 by default sends the frame out all ports except the one it came from so then this same frame is routed back via the second cable to the first switch, first switch then looks at the address and routes the frame back out the first cable to switch 2 and around it goes again. 

This is a routing loop, also known as "race tracking", and the frame will eventually cause the interface buffers on the switches to overflow, causing traffic degradation, increased CPU and ultimately switch crash. 

STP prevents this from happening by blocking ports between switches, allowing traffic to pass over one link only.  It has to be remembered that STP works vlan by vlan, so you can balance traffic across multiple links by the use of weighting, to allow some vlans on one trunk and others on the other.  Very useful protocol.

-->

Clickbank Products

CCNA Exam Questions Part 10

Another set of Random Nework related questions to mull over - have fun.


1. What effect will the shutdown command have on a Cisco router if you are in the Router(config-if)# mode?

A.) disable the router
B.) disable all inbound traffic
C.) disable the current interface
D.) disable remote access to the router

2. IP and IPv6 and IPX are examples of...

A.) Routing protocols
B.) Routed protocols

3. Cisco Routers are what by default?

A.) DTE devices
B.) DCE devices

4. What would the command copy run start achieve?

A.) Copy the startup configuration to RAM
B.) Copy the running configuration to NVRAM
C.) This is not a correct IOS command

5. If a switch receives a multicast frame, what does it do with it?

A.) Forwards it out every port
B.) Sends it back to the originator asking for a destination address
C.) Drops the frame

6, What is the default setting on a router for the invalid timer if you are using IGRP?

A.) 90 seconds
B.) 30 seconds
C.) 280 seconds
D.) 270 seconds
E.) 180 seconds

Clickbank Products

1. Correct Answer C

disable the current interface

2. Correct Answer B

Routed protocols
ROUTED PROTOCOLS are nothing more than data being transported across the networks.
Eg IP, IPV6 and IPX

ROUTING PROTOCOLS are the software that allow routers to dynamically advertise and learn routes, determine which routes are available and which are the most efficient routes to a destination.
Eg BGP, OSPF, RIP

3. Correct Answer A

DTE devices (Data Terminal Equipment) which basically means they receive or slave off the clock source provided by the carrier Circuit (DCE). Cisco Interfaces can be configured to DCE mode (they supply clock) by adding the Clock rate command.

4. Correct Answer B

Copy the running configuration to NVRAM

5. Correct Answer A

Internally multicast is treated the same as a broadcast. So the Switch will send it to all ports except from which it was recieved. Same way it will treat a broadcast.

6.  Correct Answer: D

IGRP sends its routing table to its neighbors every 90 seconds. IGRP uses an invalid timer to mark a route as invalid after 270 seconds (three times the update timer). IGRP uses a flush timer to remove a route from the routing table (default flush timer is 630 seconds, seven times the update period).

 "Man's mind stretched to a new idea never goes back to its
original dimensions."
Gerald Holton

CCNA questions Part 9

Some more random Cisco oriented Networking questions to stimulate the mind - if you're interested in this kind of thing. :-)


1. A CIDR (Classless Inter-Domain Routing) value of /30 equates to what subnet mask?

A.) 255.255.255.253
B.) 255.255.255.128
C.) 255.255.255.248
D.) 255.255.255.252

2. Your network features a combination of Cisco, 3COM and Netgear switches. You have been tasked to set up VLANS on your switched network. What trunking method should you use?

A.) Inter-Switch Link (ISL)
B.) IEEE 802.1Q
C.) You can't create VLANs by combining switches from different vendors

3. What type of NAT allows you to map multiple unregistered IP addresses to a single registered IP address?

A.) Static NAT
B.) Dynamic NAT
C.) Overloading (Port Address Translation)

4. When STP is converging no data can move through the switched network.

A.) True
B.) False

5. What is the encapsulation type of Transport Layer?

A.) Segments
B.) Packets
C.) Frames
D.) Bits



Clickbank Products


1. Correct Answer D

255.255.255.252 = /30

Classless Inter-Domain Routing is based on variable-length subnet masking (VLSM), which allows a network to be divided into variously sized subnets, providing the opportunity to size a network more appropriately for local needs

2. Correct Answer B

IEEE 802.1Q is the VLAN standard on all network devices, ISL is a cisco proprietary protocol.

3. Correct Answer C

Port Address Translation (PAT), or Overloading,  is an extension to network address translation (NAT) that permits multiple devices on a local area network (LAN) to be mapped to a single public IP address. The goal of PAT is to conserve IP addresses.

4. Correct Answer A

All ports are in placed in a blocking state while STP converges.

5. Correct Answer A

Segments = Transport Layer
Packets = Network layer
Frames = Datalink Layer
Bits = Physical Layer

"If a man will not work, he shall not eat." - 

2 Thessalonians 3:10

CCNA Questions Part 8

Another set of Random Networking Questions for your learning pleasure.


1. What OSI layer does the following refer to?

"Establishes availability of intended communication partners, establishes agreement on procedures regarding error recovery and data integrity and synchronizes networked applications"

A.) Transport layer
B.) Session layer
C.) Datalink layer
D.) Application layer
E.) Presentation layer

2. In Cisco the running-config is found in the ...

A.) NVRAM
B.) DRAM
C.) FLASH
D.) ROM

3. Where would you place standard access lists?

A) As close to the destination as possible
B) As close to the source as possible

4. How would you copy the IOS to a TFTP server?

A.) Router(config)#copy ram tftp
B.) Router(config)#copy tftp flash
C.) Router#copy flash tftp
D.) Router#copy tftp flash
E.) None of the above

5. What happens if a packet does not match any of an Access Lists (ACL) statements?
 
A.) Nothing
B.) It is rejected
C.) It is allowed

Clickbank Products


1. Correct Answer D

In TCP/IP, the application layer contains all protocols and methods that fall into the realm of process-to-process communications across an Internet Protocol (IP) network. Application layer methods use the underlying transport layer protocols to establish host-to-host connections.

2. Correct Answer A

NVRAM

3. Correct Answer: A

Standard access lists only filter based on source address so they have to be placed as close to the destination as possible.

4. Correct Answer C

Router#copy flash tftp - Cisco IOS is stored in Flash memory on their devices.

5. Correct Answer B

It is rejected because all ACL's by default have an explicit "Deny All" statement at the end, that drops any packet that does not match the list.  This is usually bypassed by adding the "allow any any" statement at the end of the list.

How did you go?  Add a comment if you like - have a great day!

"The larger the island of knowledge, the longer the
shoreline of wonder."
Ralph W. Sockman

CCNA Questions Part 7

Another set of Random Networking Questions to Ponder, Have Fun


1. What will be the IP address of the second subnet given the following?

172.16.0.0
255.255.224.0
(Assume ip subnet-zero is enabled)

A) 172.16.0.0
B) 172.16.8.0
C) 172.16.16.0
D) 172.16.32.0
E) 172.16.64.0

2. What Cisco IOS enhanced editing command end the configuration mode and returns to EXEC?

A.) Ctrl+Z
B.) Ctrl+W
C.) Ctrl+F
D.) Esc+F
E.) Tab

3. What Transport layer protocol are we describing?

"A reliable connection-oriented protocol with flow control"
A.) UDP
B.) TCP

4. What is the IEEE standard describing VLANs called?

A.) IEEE VLAN
B.) 802.3
C.) 802.1q
D.) 802.11b
E.) 802.3q

5. Where is the best position to place an Extended ACL?

A.) As close to the destination as possible
B.) As close to the source as possible

6. What IOS command would you issue in privileged-mode to change the running-config? (Cisco)

A.) config t
B.) config mem
C.) config net
D.) config run




Clickbank Products


1. Correct Answer: D

172.16.32.0
Easy way to get the Block size 256-224 = 32, now count in blocks of 32
First subnet 172.16.0.0 to 172.16.31.255, Second subnet starts 172.16.32.0

2. Correct Answer A

Cisco Keyboard Shortcut Actions 

• Up Arrow Displays your previous commands.  (command history)
• TAB Key Completes a partially typed CLI commands.
• CTRL+Z Takes you back to Privileged EXEC Mode.
• CTRL+A Places the cursor at the beginning of a line.
• CTRL+E Places the cursor at the end of a line.
• CTRL+R Redisplays the current command line.
• CTRL+W Erases a word (behind the cursor).
• CTRL+U Erases an entire line.

3. Correct Answer B

Transmission Control Protocol (TCP) provides reliable, ordered delivery of a stream of octets from a program on one computer to another program on another computer.

4. Correct Answer: C

The IEEE 802.1Q standard specifies a standard method for inserting virtual LAN (VLAN) membership tags into Ethernet frames.

5. Correct Answer A

The general rule is to place standard ACLs as close to the destination as possible and to position extended ACLs as close as possible to the source of the traffic that will be denied. This is because extended ACLs can take in to account source and destination addresses as well as port numbers.

6. Correct Answer A

config t (configure terminal)

Extra one this week, Hope you had some success - have a great day.

3 Simple Mindset “Tricks” To Take Consistent Action |

3 Simple Mindset “Tricks” To Take Consistent Action |

An interesting article worth a look...

CCNA Questions Part 6

Part 6 of the Networking Questions to keep the old Grey matter ticking - enjoy.



1. If I were to give an IP address to VLAN1, then VLAN2, and VLAN3, which VLAN would be the management VLAN? (Cisco)

A.) VLAN0
B.) VLAN1
C.) VLAN2
D.) VLAN_A
E.) VLAN01

2. What layer of the OSI model is responsible for multiplexing upper-layer applications, establishing sessions and tearing down virtual circuits?

A.) Presentation
B.) Session
C.) Transport
D.) Network
E.) Data Link

3. Which of the following commands would correctly add a message of the day banner? (Cisco)

A.) Router(config)#banner #
B.) Router(config)#banner motd #
C.) Router#banner motd #
D.) Router#banner #

4. Triggered updates are used to speed the routing protocol convergence process?

A.) True
B.) False

5. What is the reserved address space for a Class B IPV4 network?

A.) 10.0.0.0 - 10.255.255.255
B.) 20.0.0.0 - 20.255.255.255
C.) 172.16.0.0 - 172.31.255.255
D.) 192.168.0.0 - 192.168.255.255
E.) 208.168.0.0 - 208.168.255.255




Clickbank Products


1. Correct Answer: B

VLAN1 is a management VLAN and by default all ports on a switch are members of VLAN1.  Cisco recommends that you use VLAN1 for administrative purposes only, also note you can't change the name of VLAN1.

2. Correct Answer: C

In computer networking, the transport layer or layer 4 provides end-to-end communication services for applications within a layered architecture of network components and protocols. The transport layer provides services such as connection-oriented data stream support, reliability, flow control, and multiplexing.

3. Correct Answer: B
 
A Basic Example of the Command sequence is as follows:

Router>enable
Router>Password:cisco
Router#configure terminal
Router(config)#hostname London
London(config)#banner motd #welcome#
London(config)#exit
4. Correct Answer A

A triggered update is sent immediately in response to a change in the network (e.g. A link going down). The router detecting the change immediately sends an update message to its adjacent routers, which then generate their own triggered updates. This process continues until the network converges. Triggered updates occurs independently from the regular routing updates and are intended to speed the convergence process.

5. Correct Answer C

172.16.0.0 - 172.31.255.255

How did you go? Leave a comment if you disagree or have any questions - have a great day.

 "Hard work often leads to success. 

No work seldom does."
  --Harvey Mackay