9022816
Descripción
Test por Yoab Rodriguez, actualizado hace más de 1 año
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Creado por Yoab Rodriguez
hace más de 7 años
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Pregunta 1
Pregunta
1 A medium-sized business is researching available options for connecting to the Internet. The company is looking for a high speed option with dedicated, symmetric access. Which connection type should the company choose?
Respuesta
-
DSL
-
dialup
-
satellite
-
leased line
-
cable modem
Pregunta 2
Pregunta
2 What is the purpose of having a converged network?
Respuesta
-
to provide high speed connectivity to all end devices
-
to make sure that all types of data packets will be treated equally
-
to achieve fault tolerance and high availability of data network infrastructure devices
-
to reduce the cost of deploying and maintaining the communication infrastructure*
Pregunta 3
Pregunta
3 What characteristic of a network enables it to quickly grow to support new users and applications without impacting the performance of the service being delivered to existing users?
Respuesta
-
reliability
-
scalability
-
quality of service
-
accessibility
Pregunta 4
Pregunta
4 Which connection provides a secure CLI session with encryption to a Cisco switch?
Respuesta
-
a console connection
-
an AUX connection
-
a Telnet connection
-
an SSH connection
Pregunta 5
Pregunta
5 A network technician is attempting to configure an interface by entering the following command: SanJose(config)# ip address 192.168.2.1 255.255.255.0. The command is rejected by the device. What is the reason for this?
Respuesta
-
The command is being entered from the wrong mode of operation
-
The command syntax is wrong.
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The subnet mask information is incorrect.
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The interface is shutdown and must be enabled before the switch will accept the IP address
Pregunta 6
Pregunta
6 After several configuration changes are made to a router, the copy running-configuration startup-configuration command is issued. Where will the changes be stored?
Respuesta
-
flash
-
ROM
-
NVRAM
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RAM
-
the configuration register
-
a TFTP server
Pregunta 7
Pregunta
7 Refer to the exhibit. From global configuration mode, an administrator is attempting to create a message-of-the-day banner by using the command banner motd V Authorized access only! Violators will be prosecuted! V When users log in using Telnet, the banner does not appear correctly. What is the problem?
Image:
1 (image/png)
Respuesta
-
The banner message is too long.
-
The delimiting character appears in the banner message.
-
The symbol “!” signals the end of a banner message.
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Message-of-the-day banners will only appear when a user logs in through the console port.
Pregunta 8
Pregunta
8 What are three characteristics of an SVI? (Choose three.)
Respuesta
-
It is designed as a security protocol to protect switch ports.
-
It is not associated with any physical interface on a switch.
-
It is a special interface that allows connectivity by different types of media.
-
It is required to allow connectivity by any device at any location.
-
It provides a means to remotely manage a switch.
-
It is associated with VLAN1 by default.
Pregunta 9
Pregunta
9 A technician configures a switch with these commands:
SwitchA(config)# interface vlan 1
SwitchA(config-if)# ip address 192.168.1.1 255.255.255.0
SwitchA(config-if)# no shutdown
What is the technician configuring?
Respuesta
-
Telnet access
-
SVI
-
password encryption
-
physical switchport access
Pregunta 10
Pregunta
10 In computer communication, what is the purpose of message encoding?
Respuesta
-
to convert information to the appropriate form for transmission
-
to interpret information
-
to break large messages into smaller frames
-
to negotiate correct timing for successful communication
Pregunta 11
Pregunta
11 What protocol is responsible for controlling the size of segments and the rate at which segments are exchanged between a web client and a web server?
Respuesta
-
TCP
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IP
-
HTTP
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Ethernet
Pregunta 12
Pregunta
12 What are two benefits of using a layered network model? (Choose two.)
Respuesta
-
It assists in protocol design.
-
It speeds up packet delivery.
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It prevents designers from creating their own model.
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It prevents technology in one layer from affecting other layers.
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It ensures a device at one layer can function at the next higher layer.
Pregunta 13
Pregunta
13 What is the process of dividing a data stream into smaller pieces before transmission?
Respuesta
-
segmentation
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encapsulation
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encoding
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flow control
Pregunta 14
Pregunta
14 When IPv4 addressing is manually configured on a web server, which property of the IPv4 configuration identifies the network and host portion for an IPv4 address?
Respuesta
-
DNS server address
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subnet mask
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default gateway
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DHCP server address
Pregunta 15
Pregunta
15 A network administrator is troubleshooting connectivity issues on a server. Using a tester, the administrator notices that the signals generated by the server NIC are distorted and not usable. In which layer of the OSI model is the error categorized?
Respuesta
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presentation layer
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network layer
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physical layer
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data link layer
Pregunta 16
Pregunta
16 A network engineer is measuring the transfer of bits across the company backbone for a mission critical database application. The engineer notices that the network throughput appears lower than the bandwidth expected. Which three factors could influence the differences in throughput?
(Choose three.)
Respuesta
-
the amount of traffic that is currently crossing the network
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the sophistication of the encapsulation method applied to the data
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the type of traffic that is crossing the network
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the latency that is created by the number of network devices that the data is crossing
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the bandwidth of the WAN connection to the Internet
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the reliability of the gigabit Ethernet infrastructure of the backbone
Pregunta 17
Pregunta
17 Which type of UTP cable is used to connect a PC to a switch port?
Respuesta
-
console
-
rollover
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crossover
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straight-through
Pregunta 18
Pregunta
18 What is a characteristic of the LLC sublayer?
Respuesta
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It provides the logical addressing required that identifies the device.
-
It provides delimitation of data according to the physical signaling requirements of the medium.
-
It places information in the frame allowing multiple Layer 3 protocols to use the same network interface and media.
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It defines software processes that provide services to the physical layer.
Pregunta 19
Pregunta
19 What are the three primary functions provided by Layer 2 data encapsulation? (Choose three.)
Respuesta
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error correction through a collision detection method
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session control using port numbers
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data link layer addressing
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placement and removal of frames from the media
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detection of errors through CRC calculations
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delimiting groups of bits into frames
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conversion of bits into data signals
Pregunta 20
Pregunta
20 What will a host on an Ethernet network do if it receives a frame with a destination MAC address that does not match its own MAC address?
Respuesta
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It will discard the frame.
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It will forward the frame to the next host.
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It will remove the frame from the media.
-
It will strip off the data-link frame to check the destination IP address.
Pregunta 21
Pregunta
21 What are two actions performed by a Cisco switch? (Choose two.)
Respuesta
-
building a routing table that is based on the first IP address in the frame header
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using the source MAC addresses of frames to build and maintain a MAC address table
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forwarding frames with unknown destination IP addresses to the default gateway
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utilizing the MAC address table to forward frames via the destination MAC address
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examining the destination MAC address to add new entries to the MAC address table
Pregunta 22
Pregunta
22 What are two examples of the cut-through switching method? (Choose two.)
Respuesta
-
store-and-forward switching
-
fast-forward switching
-
CRC switching
-
fragment-free switching
-
QOS switching
Pregunta 23
Pregunta
23 Refer to the exhibit. If host A sends an IP packet to host B, what will the destination address be in the frame when it leaves host A?
Image:
2 (image/jpeg)
Respuesta
-
DD:DD:DD:DD:DD:DD
-
172.168.10.99
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CC:CC:CC:CC:CC:CC
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172.168.10.65
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BB:BB:BB:BB:BB:BB
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AA:AA:AA:AA:AA:AA
Pregunta 24
Pregunta
24 What are two services provided by the OSI network layer? (Choose two.)
Respuesta
-
performing error detection
-
routing packets toward the destination
-
encapsulating PDUs from the transport layer
-
placement of frames on the media
-
collision detection
Pregunta 25
Pregunta
25 What information is added during encapsulation at OSI Layer 3?
Respuesta
-
source and destination MAC
-
source and destination application protocol
-
source and destination port number
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source and destination IP address
Pregunta 26
Pregunta
26 What are two functions of NVRAM? (Choose two.)
Respuesta
-
to store the routing table
-
to retain contents when power is removed
-
to store the startup configuration file
-
to contain the running configuration file
-
to store the ARP table
Pregunta 27
Pregunta
27 Refer to the exhibit. The network administrator for a small advertising company has chosen to use the 192.168.5.96/27 network for internal LAN addressing. As shown in the exhibit, a static IP address is assigned to the company web server. However, the web server cannot access the Internet. The administrator verifies that local workstations with IP addresses that are assigned by a DHCP server can access the Internet, and the web server is able to ping local workstations. Which component is incorrectly configured?
Image:
3 (image/png)
Respuesta
-
subnet mask
-
DNS address
-
host IP address
-
default gateway address
Pregunta 28
Pregunta
28 Why does a Layer 3 device perform the ANDing process on a destination IP address and subnet mask?
Respuesta
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to identify the broadcast address of the destination network
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to identify the host address of the destination host
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to identify faulty frames
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to identify the network address of the destination network
Pregunta 29
Pregunta
29 What are the three ranges of IP addresses that are reserved for internal private use? (Choose three.)
Respuesta
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10.0.0.0/8
-
64.100.0.0/14
-
127.16.0.0/12
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172.16.0.0/12
-
192.31.7.0/24
-
192.168.0.0/16
Pregunta 30
Pregunta
30 Which three addresses are valid public addresses? (Choose three.)
Respuesta
-
198.133.219.17
-
192.168.1.245
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10.15.250.5
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128.107.12.117
-
192.15.301.240
-
64.104.78.227
Pregunta 31
Pregunta
31 What type of IPv6 address is FE80::1?
Respuesta
-
loopback
-
link-local
-
multicast
-
global unicast
Pregunta 32
Pregunta
32 Refer to the exhibit. On the basis of the output, which two statements about network connectivity are correct? (Choose two.)
Image:
4 (image/png)
Respuesta
-
There is connectivity between this device and the device at 192.168.100.1.
-
The connectivity between these two hosts allows for videoconferencing calls.
-
There are 4 hops between this device and the device at 192.168.100.1.
-
The average transmission time between the two hosts is 2 milliseconds.
-
This host does not have a default gateway configured.
Pregunta 33
Pregunta
33 Which subnet would include the address 192.168.1.96 as a usable host address?
Respuesta
-
192.168.1.64/26
-
192.168.1.32/27
-
192.168.1.32/28
-
192.168.1.64/29
Pregunta 34
Pregunta
34 How many hosts are addressable on a network that has a mask of 255.255.255.248?
Respuesta
-
2
-
6
-
8
-
14
-
16
-
254
Pregunta 35
Pregunta
35 Which statement is true about variable-length subnet masking?
Respuesta
-
Each subnet is the same size.
-
The size of each subnet may be different, depending on requirements.
-
Subnets may only be subnetted one additional time.
-
Bits are returned, rather than borrowed, to create additional subnets.
Pregunta 36
Pregunta
36 Refer to the exhibit. Consider the IP address of 192.168.10.0/24 that has been assigned to a high school building. The largest network in this building has 100 devices. If 192.168.10.0 is the network number for the largest network, what would be the network number for the next largest network, which has 40 devices?
Image:
5 (image/jpeg)
Respuesta
-
192.168.10.0
-
192.168.10.128
-
192.168.10.192
-
192.168.10.224
-
192.168.10.240
Pregunta 37
Pregunta
37 In what two situations would UDP be the preferred transport protocol over TCP? (Choose two.)
Respuesta
-
when applications need to guarantee that a packet arrives intact, in sequence, and unduplicated
-
when a faster delivery mechanism is needed
-
when delivery overhead is not an issue
-
when applications do not need to guarantee delivery of the data
-
when destination port numbers are dynamic
Pregunta 38
Pregunta
38 What important information is added to the TCP/IP transport layer header to ensure communication and connectivity with a remote network device?
Respuesta
-
timing and synchronization
-
destination and source port numbers
-
destination and source physical addresses
-
destination and source logical network addresses
Pregunta 39
Pregunta
39 What is the TCP mechanism used in congestion avoidance?
Respuesta
-
three-way handshake
-
socket pair
-
two-way handshake
-
sliding window
Pregunta 40
Pregunta
40 Which three statements characterize UDP? (Choose three.)
Respuesta
-
UDP provides basic connectionless transport layer functions.
-
UDP provides connection-oriented, fast transport of data at Layer 3.
-
UDP relies on application layer protocols for error detection.
-
UDP is a low overhead protocol that does not provide sequencing or flow control mechanisms
-
UDP relies on IP for error detection and recovery.
-
UDP provides sophisticated flow control mechanisms
Pregunta 41
Pregunta
41 Which two tasks are functions of the presentation layer? (Choose two.)
Respuesta
-
compression
-
addressing
-
encryption
-
session control
-
authentication
Pregunta 42
Pregunta
42 Which two protocols operate at the highest layer of the TCP/IP protocol stack? (Choose two.)
Respuesta
-
DNS
-
Ethernet
-
IP
-
POP
-
TCP
-
UDP
Pregunta 43
Pregunta
43 Which two roles can a computer assume in a peer-to-peer network where a file is being shared between two computers? (Choose two.)
Respuesta
-
client
-
master
-
server
-
slave
-
transient
Pregunta 44
Pregunta
44 What is the function of the HTTP GET message?
Respuesta
-
to request an HTML page from a web server
-
to send error information from a web server to a web client
-
to upload content to a web server from a web client
-
to retrieve client email from an email server using TCP port 110
Pregunta 45
Pregunta
45 A wireless host needs to request an IP address. What protocol would be used to process the request?
Respuesta
-
FTP
-
HTTP
-
DHCP
-
ICMP
-
SNMP
Pregunta 46
Pregunta
46 When planning for network growth, where in the network should packet captures take place to assess network traffic?
Respuesta
-
on as many different network segments as possible
-
only at the edge of the network
-
between hosts and the default gateway
-
only on the busiest network segment
Pregunta 47
Pregunta
47 When applied to a router, which command would help mitigate brute-force password attacks against the router?
Respuesta
-
exec-timeout 30
-
service password-encryption
-
banner motd $Max failed logins = 5$
-
login block-for 60 attempts 5 within 60
Pregunta 48
Pregunta
48 Refer to the exhibit. An administrator is testing connectivity to a remote device with the IP address 10.1.1.1. What does the output of this command indicate?
Image:
6 (image/png)
Respuesta
-
Connectivity to the remote device was successful.
-
A router along the path did not have a route to the destination.
-
A ping packet is being blocked by a security device along the path.
-
The connection timed out while waiting for a reply from the remote device.
Pregunta 49
Pregunta
49 A user is unable to reach the web site when typing http://www.cisco.com in a web browser, but can reach the same site by typing http://72.163.4.161. What is the issue?
Respuesta
-
default gateway
-
DHCP
-
DNS
-
TCP/IP protocol stack
Pregunta 50
Pregunta
50 What source IP address does a router use by default when the traceroute command is issued?
Respuesta
-
the highest configured IP address on the router
-
a loopback IP address
-
the IP address of the outbound interface
-
the lowest configured IP address on the router
Pregunta 51
Pregunta
51 Match each item to the type of topology diagram on which it is typically identified. (Not all options are used.)
Respuesta
-
Image:7 (image/jpeg)
-
seguir ese orden
Pregunta 52
Pregunta
52 Match the description with the associated IOS mode. (Not all options are used.)
Respuesta
-
Image:8 (image/jpeg)
-
seguir ese orden
Pregunta 53
Pregunta
53 Match the situation with the appropriate use of network media.
Respuesta
-
Image:9 (image/jpeg)
-
seguir ese orden
Pregunta 54
Pregunta
54 Refer to the exhibit. Match the packets with their destination IP address to the exiting interfaces on the router. (Not all options are used.)
Respuesta
-
Image:10.1 (image/png)
-
seguir ese orden
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