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Saturday, July 21, 2012

CCNA 1 Chapter 1 V4.0



1Which of the following descriptions are true regarding the management connections on a Cisco router? (Choose three.)
They are non-network connections.
They are used to connect the router to the rest of the production network.
They are synchronous serial ports.
They are used for initial router configuration.
They are asynchronous serial ports.
They are accessed using their assigned IP address.
2The console port can be used for which of the following? (Choose three.)
debugging.
password recovery.
routing data between networks.
troubleshooting.
connecting one router to another.
3Which of the following describes the function of a WAN?
connects peripherals in a single location.
connects multiple networks in a single building.
provides connectivity on a LAN.
provides connectivity over a large geographic area.

4An internetwork must include which of the following? (Choose three.)
switching.
static addressing.
IETF standardization.
dynamic or static routing. 
consistent end-to-end addressing.
5ABC Company just purchased three new routers to start their company network. Which items are needed to establish a terminal session between a PC and the router for the initial configuration? (Choose three.) 
straight-through cable. 
terminal emulation software. 
rollover cable. 
RJ-45 to DB-9 connector.
V.35 cable.
6. Terminal emulation software, such as HyperTerminal, can be used to configure a router. Which of the following HyperTerminal options shown in the graphic are correctly set to allow configuration of a Cisco router? (Choose three.) 
bits per second.
data bits. 
parity. 
stop bits.
flow control.
7Which of the following devices are used in the construction of a WAN? (Choose three.) 
hubs.
routers. 
communication servers. 
transceivers.
modems. 
multi-port repeaters.
8Which of the following are functions of RAM? (Choose three.) 
contains startup configuration file.
stores routing table. 
holds fast switching cache. 
retains contents when power is removed.
stores running configuration file.
9Why is a console connection to a router or switch preferred when troubleshooting? (Choose two.) 
can be accessed remotely. 
does not depend on network services. 
displays startup and error messages by default.
does not require special components.
ccna answers ccna final ccna exploration
10Which basic components do a router and a standard desktop PC have in common? (Choose three.) 
CPU.
hard drive.
input/output interfaces.
keyboard.
monitor.
system bus.
11During the initial configuration of a 2600 series Cisco router, which cable is required for connecting a PC to the console port? 
twisted.
crossover.
rollover.
straight.
12A router is composed of many internal components. Which of the following components stores a copy of the router’s configuration file?
metal-oxide memory.
read only memory.
flash memory.
non-volatile random access memory.
13What contains the instructions that a router uses to control the flow of traffic through its interfaces?
packet configuration.
configuration files.
flash memory.
internal components.
14Several Ethernet hosts on a LAN need the gateway services of a Cisco 2500 series router. Which of the following would be needed to physically connect a router to all of the hosts on the LAN? (Choose two.) 
a crossover cable between the transceiver on a router and a switch.
a crossover cables between a switch and hosts on a LAN.
a straight-through cable between the auxiliary port on a router and a switch.
a rollover cable between the console port on a router and a switch.
straight-through cables between a switch and hosts on a LAN.
a straight-through cable between the transceiver on a router and a switch.
15Which router component holds the configuration file when power is lost? 
volatile random access memory.
read only memory.
non-volatile random access memory.
flash memory.
16Which of the following layers of the OSI model are incorporated in WAN standards? (Choose two.)
physical layer.
application layer.
transport layer.
data link layer.
session layer.
17Which of the following are true regarding router interfaces? (Choose three.) 
provide temporary memory for the router configuration files.
connect the router to the network for packet entry and exit.
can be on the motherboard or a separate module.
hold the IOS image.
connect the router to LANs and WANs.
18Which of the following tasks can be accomplished through a management connection on a router? (Choose three.) 
troubleshooting problems.
monitoring the system. 
capturing LAN data packets.
configuring the router. 
routing data packets.
19What do routers use to select the best path for outgoing data packets? 
ARP tables.
bridging tables.
routing tables. 
switching tables.
20Which of the following are functions of NVRAM? (Choose two.) 
stores the routing table.
retains contents when power is removed. 
stores the startup configuration file. 
contains the running configuration file.
stores the ARP table.
21Select the statements that correctly describe flash memory in a 2600 series router? (Choose two.) 
holds the startup configuration by default.
can be upgraded with single in-line memory modules. 
stores Cisco IOS software images. 
stores routing table information by default.
maintains the only copy of an IOS image after the router is booter.
21. Which WAN technology allows telecommunication companies to offer enterprises services such as storage networking, secure Layer 2 and Layer 3 VPNs, and disaster recovery on public networks?DSL
ATM
ISDN
metro Ethernet
22 .What three technologies are associated with ISDN PRI? (Choose three.)
DLCI
circuit switching
packet switching
data bearer channels
switched virtual circuits
time division multiplexing

23. 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
24.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
25 .Which device is used to establish the communications link between the customer equipment and the local loop for digital lines?
terminal adapter
modem
CSU/DSU
PBX switch
ISDN switch
Frame Relay Switch
26.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
27.Which two devices are commonly used as data communications equipment? (Choose two.)modem
router
CSU/DSU
ISDN switch
Ethernet switch
28.Which switching type will allow the communication devices in the provider's network to be shared and only allocated to an individual subscriber during data transfer?circuit-switched
packet-switched
frame-switched
dedicated-switched lines
lease-switched
29.Virtual private networks (VPNs) use what type of connection from the remote site to the private network?
PVCs
DLCIs
tunnels
virtual circuits
dedicated Layer 2 links
30.Refer to the exhibit. The users in the branch office initiated three simultaneous calls to the HQ office. Which technology is used to ensure that a fixed-capacity connection is made available to each of the calls?time-division multiplexing (TDM)
signaling
X.25
ISDN BRI

31. 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

32.Which three WAN devices can be found in the cloud? (Choose three.)

Ethernet switches
Frame Relay switches
ATM switches
bridges
core routers
repeaters

33.Which term describes a device that will put data on the local loop?DLCI
CO
DCE
DTE
PRI
BRI
34.Which packet-switched WAN technology offers high-bandwidth connectivity capable of managing data, and video all on the same infrastructure?Time Division Multiplexing (TDM)
metro Ethernet
Integrated Services Digital Network (ISDN)
Public Switched Telephone Network (PSTN)
35.What are two advantages of an analog PSTN WAN connection? (Choose two.)low cost
availability
traffic encryption
available bandwidth
support for voice and video

36.Which three features are identified with Frame Relay connections? (Choose three.)CIR
DLCI
DSLAM
PVC
SPID
53-byte cells

37.Which networking device is typically used to concentrate the dial-in and dial-out traffic of multiple users and from a network?core router
access server
Frame Relay switch
ATM switch

38.What are three advantages of permanent dedicated circuits over shared lines such as Frame-Relay? (Choose three.)dedicated bandwidth capacity
eliminates latency and jitter between endpoints
low cost of implementation
connections can be multiplexed over the same leased line
each endpoint has a dedicated physical router interface
eliminates point-to-point connections

39.A company needs a WAN connection that is capable of transferring voice, video, and data at a minimum rate of 155 Mbps. Which WAN connection is the best choice?X.25
DSL
ATM
ISDN BRI
ISDN PRI





2 comments:

  1. I am really thankful for posting such useful information. It really made me understand lot of important concepts in the topic. Keep up the good work!
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