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Sunday, October 19, 2014

2014 Exam Answers - CCNA 1 Chapter 8 v5 0

1

Fill in the blank.

The decimal equivalent of the binary number 10010101 is    ”149” .

2



Place the options in the following order:

[+] 192.168.100.161/25

[+] 203.0.113.100/24

[+] 10.0.50.10/30

[#] 192.168.1.80/29

[#] 172.110.12.64/28

[#] 10.10.10.128/25

[*] 10.0.0.159/27

[*] 192.168.1.191/26

[+] Order does not matter within this group.

[#] Order does not matter within this group.

[*] Order does not matter within this group.

3

What is indicated by a successful ping to the ::1 IPv6 address?

The link-local address is correctly configured.

The default gateway address is correctly configured.

The host is cabled properly.

All hosts on the local link are available.

IP is properly installed on the host.*

4



Launch PT - Hide and Save PT

Open the PT Activity. Perform the tasks in the activity instructions and then answer the question.

Which message is displayed on the web server?

Correct configuration!*

IPv6 address configured!

You did it right!

Successful configuration!

5

Which two ICMP messages are used by both IPv4 and IPv6 protocols? (Choose two.)​

router solicitation

protocol unreachable*

neighbor solicitation

route redirection*

router advertisement

6

A message is sent to all hosts on a remote network. Which type of message is it?

unicast

directed broadcast*

limited broadcast

multicast

7

Which two things can be determined by using the ping command? (Choose two.)

the average time it takes each router in the path between source and destination to respond

the average time it takes a packet to reach the destination and for the response to return to the source*

whether or not the destination device is reachable through the network*

the IP address of the router nearest the destination device

the number of routers between the source and destination device

8

A DHCP server is used to assign IP addresses dynamically to the hosts on a network. The address pool is configured with 192.168.10.0/24. There are 3 printers on this network that need to use reserved static IP addresses from the pool. How many IP addresses in the pool are left to be assigned to other hosts?

253

252

251*

254

9

Which two parts are components of an IPv4 address? (Choose two.)

logical portion

network portion*

physical portion

broadcast portion

host portion*

subnet portion

10

Which IPv6 address is most compressed for the full FE80:0:0:0:2AA:FF:FE9A:4CA3 address?​

FE80::2AA:FF:FE9A:4CA3*

FE80::0:2AA:FF:FE9A:4CA3​

FE80:::0:2AA:FF:FE9A:4CA3​

FE8::2AA:FF:FE9A:4CA3​

11



12

What are three parts of an IPv6 global unicast address? (Choose three.)

an interface ID that is used to identify the local host on the network*

an interface ID that is used to identify the local network for a particular host

a subnet ID that is used to identify networks inside of the local enterprise site*

a global routing prefix that is used to identify the network portion of the address that has been provided by an ISP*

a global routing prefix that is used to identify the portion of the network address provided by a local administrator

13



14

Which network migration technique encapsulates IPv6 packets inside IPv4 packets to carry them over IPv4 network infrastructures?

encapsulation

translation

dual-stack

tunneling*

15

When an IPv6 enabled host needs to discover the MAC address of an intended IPv6 destination, which destination address is used by the source host in the NS message?

global unicast address of the receiver

solicited-node multicast address*

all-node multicast address

link-local address of the receiver

16

When a Cisco router is being moved from an IPv4 network to a complete IPv6 environment, which series of commands would correctly enable IPv6 forwarding and interface addressing?

Router# configure terminal

Router(config)# interface fastethernet 0/0

Router(config-if)# ip address 192.168.1.254 255.255.255.0

Router(config-if)# no shutdown

Router(config-if)# exit

Router(config)# ipv6 unicast-routing

Router# configure terminal

Router(config)# interface fastethernet 0/0

Router(config-if)# ipv6 address 2001:db8:bced:1::9/64

Router(config-if)# no shutdown

Router(config-if)# exit

Router(config)# ipv6 unicast-routing ***********

Router# configure terminal

Router(config)# interface fastethernet 0/0

Router(config-if)# ipv6 address 2001:db8:bced:1::9/64

Router(config-if)# no shutdown

Router# configure terminal

Router(config)# interface fastethernet 0/0

Router(config-if)# ip address 2001:db8:bced:1::9/64

Router(config-if)# ip address 192.168.1.254 255.255.255.0

Router(config-if)# no shutdown



17

What two statements describe characteristics of Layer 3 broadcasts? (Choose two.)

There is a broadcast domain on each switch interface.

Routers create broadcast domains.*

A router will not forward any type of Layer 3 broadcast packet.

Broadcasts are a threat and users must avoid using protocols that implement them.

A limited broadcast packet has a destination IP address of 255.255.255.255.*

Some IPv6 protocols use broadcasts.

18

Which two statements are correct about IPv4 and IPv6 addresses? (Choose two.)

IPv6 addresses are represented by hexadecimal numbers.*

IPv6 addresses are 32 bits in length.

IPv4 addresses are 128 bits in length.

IPv4 addresses are represented by hexadecimal numbers.

IPv4 addresses are 32 bits in length.*

IPv6 addresses are 64 bits in length.

19

What is the prefix length notation for the subnet mask 255.255.255.224?

/26

/28

/27*

/25

20

Fill in the blank.

What is the decimal equivalent of the hex number 0x3F?   “63”

21

What are two types of IPv6 unicast addresses? (Choose two.)

anycast

link-local*

multicast

loopback*

broadcast

22

When will a router drop a traceroute packet?

when the router receives an ICMP Time Exceeded message

when the host responds with an ICMP Echo Reply message

when the value in the TTL field reaches zero*

when the values of both the Echo Request and Echo Reply messages reach zero

when the RTT value reaches zero

23

An IPv6 enabled device sends a data packet with the destination address of FF02::1. What is the target of this packet?

all IPv6 configured routers across the network

all IPv6 configured routers on the local link

all IPv6 enabled nodes on the local link*

all IPv6 DHCP servers

24

How many bits are in an IPv4 address?

256

128

64

32*

Monday, March 10, 2014

CCNA 4 R&S Year 2014: Connecting Networks Chapter 1 v5.0 Exam Question with Answers

Connecting Networks Chapter 1 v5.0 Exam Answers 2014


What are two structured engineering principles necessary for successful implementation of a network design? (Choose two.)
modularity*
security
availability
quality of service
resiliency*


What is an important first consideration when starting to design a network?
size of the network* 
access security
protocols to be used
type of applications


Which layer of the Cisco Collaboration Architecture contains unified communications and conference software such as Cisco WebEx Meetings, WebEx Social, Cisco Jabber, and TelePresence?
service provider edge
enterprise WAN
applications and devices* 
services module


In which layer of the hierarchical enterprise LAN design model would PoE for VoIP phones and access points be considered?
core
physical
data link
access* 
distribution


Which network module is the fundamental component of a campus design?
access-distribution module* 
services module
data center
enterprise edge


In a hierarchical network design, which layers may be combined into a collapsed core for smaller networks?
core, distribution, and access
distribution and access
core and access
core and distribution*

7
Refer to the exhibit. Which type of ISP connectivity to the service provider edge is being used by company A?
dual-homed
dual-multihomed
single-homed
multihomed*


What is one advantage to designing networks in building block fashion for large companies?
mobility
redundancy
increased network access time
failure isolation*


A network engineer wants to redesign the wireless network and make use of wireless network controllers that manage the many deployed wireless access points. In which network design module of the campus network architecture would the centralized wireless network controllers be found?
services* 
access-distribution
enterprise edge
data center

10 
Which two devices would commonly be found at the access layer of the hierarchical enterprise LAN design model? (Choose two.)
Layer 3 device
firewall
access point* 
Layer 2 switch* 
modular switch

11 
Which approach in networking allows for network changes, upgrades, or the introduction of new services in a controlled and staged fashion?
modular* 
network module
borderless
static

12
Refer to the exhibit. Which type of Cisco hierarchical LAN design model is used at school site 1?
7 layer
two-tier collapsed core* 
three-tier
3 layer

13 
Which three network architectures have been introduced by Cisco to address the emerging technology challenges created by the evolving business models? (Choose three.)
Cisco Collaboration* 
Cisco Data Center* 
Cisco Borderless* 
Cisco Enterprise Edge
Cisco Enterprise Campus
Cisco Enterprise Branch

14 
Which Cisco technology allows diverse network devices to connect securely, reliably, and seamlessly to enterprise network resources?
Cisco AnyConnect*
enterprise edge
building distribution
service provider edge

15 
The network design for a college with users at five sites is being developed. Where in the campus network architecture would servers used by all users be located?
services
enterprise edge
data center* 
access-distribution

16 
What is creating a new challenge for IT departments by changing the border of the enterprise network?
tablets* 
company-owned desktops
energy costs
access layer switching

17 
Which network architecture functions through a combination of technologies that include wired, wireless, security, and more?
Cisco Borderless* 
Cisco Enterprise Campus
Cisco Enterprise Edge
Cisco Enterprise Branch

18 
Which network architecture combines individual components to provide a comprehensive solution allowing people to cooperate and contribute to the production of something?
Cisco Enterprise Campus Architecture
Cisco Enterprise Branch Architecture
Cisco Borderless Network Architecture
Cisco Collaboration Architecture*

19 
Fill in the blank.
Reducing the complexity of network design by dividing a network into smaller
areas is an example of a ” hierarchical ” network model.​

20 
Fill in the blank. Use the abbreviation.
Under the Cisco Enterprise Edge module, the submodule that provides remote access
including authentication and IPS appliances is the ” VPN ” and remote access submodule.

21

Place the options in the following order:
- not scored – 
core 
ccess 
distribution

Saturday, March 9, 2013

JAN2012 - Chapter 1 CCNA Exploration 4.0 EWAN Answer and Question


1. Which statement is true about the differences between a WAN and a LAN?
WANs generally support higher bandwidth than LANs support.
A WAN link typically traverses shorter geographic distances than a LAN link traverses.
A WAN often relies on the services of carriers, such as telephone or cable companies, but a LAN does not.
All WAN implementations generally use the same Layer 2 protocol but there are many accepted LAN Layer 2 protocols in use.
2. A U.S. company requires a WAN connection used only to transfer sales data from individual stores to the home office. All transfers will occur after business hours. The required bandwidth for this connection is estimated to be less than 38 kbps. Which type of connection requires the least investment for this company?
ATM
ISDN
analog dialup
T1 Leased Line
3. What are two advantages of an analog PSTN WAN connection? (Choose two.)
low cost
availability
traffic encryption
available bandwidth
support for voice and video
4. Which WAN technology uses a fixed payload of 48 bytes and is transported across both switched and permanent virtual circuits?
ATM
ISDN
Frame Relay
metro Ethernet
5. Which three WAN devices can be found in the cloud? (Choose three.)
ATM switches
core routers
CSU/DSU
Ethernet switches
Frame Relay switches
repeaters
6. Which term describes a device that will put data on the local loop?
DLCI
DTE
DCE
BRI
PRI
7. What is an advantage of packet-switched technology over circuit-switched technology?
Packet-switched networks are less susceptible to jitter than circuit-switched networks are.
Packet-switched networks can efficiently use multiple routes inside a service provider network.
Packet-switched networks do not require an expensive permanent connection to each endpoint.
Packet-switched networks usually experience lower latency than circuit-switched networks experience.
8. Which statement is true about data connectivity between a customer and a service provider?
Normally the CSU/DSU is the designated demarcation point for the service provider but not the customer.
The segment between the demarcation point and the central office is known as the “last mile.”
The local loop is the segment between the CSU/DSU and the serial port on a router.
Putting data on the local loop is the responsibility of the DTE.
9. A company needs a WAN connection that is capable of transferring voice, video, and data at a minimum data rate of 155 Mbps. Which WAN connection is the best choice?
X.25
DSL
ATM
ISDN BRI
ISDN PRI
10. Which statement is true of the functionality of the layers in the hierarchical network model?
The purpose of the access layer is to provide very high bandwidth communications between network devices.
Most security screening to prevent unauthorized entry to the network happens at the core layer.
Untrusted external connections are segmented from the rest of the network at all three levels.
The distribution layer aggregates WAN connections at the edge of the campus.
11. Why is the call setup time of a circuit-switched WAN implementation considered a drawback?
Routing protocols are incompatible with this function.
It restricts the communication sent to voice traffic only.
A telephone must be used to initially start transferring data.
Data cannot be transferred until a circuit has been established.
12. For digital lines, which device is used to establish the communications link between the customer equipment and the local loop?
CSU/DSU
Frame Relay switch
ISDN switch
modem
PBX switch
13. Which packet-switched WAN technology offers high-bandwidth connectivity capable of managing data, voice, and video all on the same infrastructure?
Time Division Multiplexing (TDM)
metro Ethernet
Integrated Services Digital Network (ISDN)
Public Switched Telephone Network (PSTN)
14. Which networking device is typically used to concentrate the dial-in and dial-out traffic of multiple users to and from a network?
core router
access server
Frame Relay switch
ATM switch
15. Which two devices are commonly used as data communications equipment? (Choose two.)
modem
router
CSU/DSU
ISDN switch
Ethernet switch
16. Which two features are identified with Frame Relay connections? (Choose two.)
53-byte cells
DLCI
DSLAM
PVC
SPID
17. Which statement about WAN protocols is correct?
ATM differs from other WAN protocols in that it uses variably sized packets.
Most WAN protocols use HDLC or a variant of HDLC as a framing mechanism.
The frame header consists of the frame check sequence and cyclic redundancy check.
ISDN differs from Frame Relay, HDLC, and ATM in that it is packet-switched rather than circuit-switched technology.
18. Which switching type will allow the communication devices in the provider network to be shared and only allocated to an individual subscriber during data transfer?
circuit-switched
dedicated switched lines
frame-switched
packet-switched
19. What can cause a reduction in available bandwidth on a cable broadband connection?
smaller cells
number of subscribers
committed information rate
distance from the central office of the provider
20. What three terms are associated with ISDN PRI? (Choose three.)
cell
DLCI
circuit switching
packet switching
data bearer channels
time-division multiplexing
21. At which two layers of the OSI model does a WAN operate? (Choose two.)
Physical Layer
Data Link Layer
Network Layer
Transport Layer
Presentation Layer
Application Layer
22. What type of connectivity is established when VPNs are used from the remote site to the private network?
PVCs
DLCIs
tunnels
dedicated Layer 2 links
Update : Links