CCNA test 2

Note moyenne : Publié par Edelwess le 3 février 2019
Aller le deuxième, un long à faire mais ça va

Quiz similaires

Question 1
What addresses are mapped by ARP?

Destination MAC address to a destination IPv4 address
Destination IPv4 address to the source MAC address
Destination IPv4 address to the destination host name
Destination MAC address to the source IPv4 address
Question 2
What are two services provided by the OSI network layer? (Choose two.

Performing error detection
Routing packets toward the destination
Encapsulating PDUs from the transport layer
Placement of frames on the media
Collision detection
Question 3
What are two functions of NVRAM? (Choose two.)

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
Question 4

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?

DD:DD:DD:DD:DD:DD
172.168.10.99
CC:CC:CC:CC:CC:CC
172.168.10.65
BB:BB:BB:BB:BB:BB
AA:AA:AA:AA:AA:AA
Question 5

Refer to the exhibit. What will be the result of enteringthis configuration the next time a network administrator connects a console cable to the router and no additional commands have been entered?

The administrator will be required to enter Cisco123.
The administrator will be required to enter Cisco234.
Theadministrator will be required to enter Cisco789
The administrator will be presented with the R1> prompt.
Question 6
What is the dotted decimal representation of the IPv4 address 11001011.00000000.01110001.11010011?

192.0.2.199
198.51.100.201
203.0.113.211
209.165.201.223
Question 7
What are three characteristics of multicast transmission? (Choose three.)

The source address of a multicast transmission is in the range of 224.0.0.0 to 224.0.0.255
A single packet can be sent to a group of hosts.
Multicast transmission can be used by routers to exchange routing information
Routers will not forward multicast addresses in the range of 224.0.0.0 to 224.0.0.255.
Computers use multicast transmission to request IPv4 addresses.
Multicast messages map lower layer addresses to upper layer addresses.
Question 8
What are the three ranges of IP addresses that are reserved for internal private use? (Choose three.)•

10.0.0.0/8
64.100.0.0/14
127.16.0.0/12
172.16.0.0/12
192.31.7.0/24
192.168.0.0/16
Question 9
What purpose does NAT64 serve in IPv6?

It converts IPv6 packets intoIPv4 packets.
It translates private IPv6 addresses into public IPv6 addresses.
It enables companies to use IPv6 unique local addresses in the network.
It converts regular IPv6 addresses into 64-bit addresses that can be used on the Internet.
It converts the 48-bit MAC address into a 64-bit host address that can be used for automatic host addressing.
Question 10
What is the most compressed representation of the IPv6 address 2001:0000:0000:abcd:0000:0000:0000:0001?

2001:0:abcd::1
2001:0:0:abcd::1
2001::abcd::1
2001:0000:abcd::1
2001::abcd:0:1
Question 11
Which range of link-local addresses can be assigned to an IPv6-enabled interface?

FEC0::/10
FDEE::/7
FE80::/10
FF00::/8
Question 12
How many valid host addresses are available on an IPv4 subnet that is configured with a /26 mask?

254
190
192
62
64
Question 13
A site administrator has been told that a particular network at the site must accommodate 126 hosts. Which subnet mask would be used that contains the required number of host bits?

255.255.255.0
255.255.255.128
255.255.255.224
255.255.255.240
Question 14
Which subnet would include the address 192.168.1.96 as a usable host address?

192.168.1.64/26
192.168.1.32/27
192.168.1.32/28
192.168.1.64/29
Question 15
Which statement is true about variable-length subnet masking?

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.
Question 16
What are two ways that TCP uses the sequence numbers in a segment? (Choose two.)

To identify missing segments at the destination
To reassemblethe segments at the remote location
To specify the order in which the segments travel from source to destination
To limit the number of segments that can be sent out of an interface at one time
To determine if the packet changed during transit
Question 17
Which scenario describes a function provided by the transport layer?

A student is using a classroom VoIP phone to call home. The unique identifier burned into the phone is a transport layer address used to contact another network device on the same network.
A student is playing a short web-based movie with sound. The movie and sound are encoded within the transport layer header.
A student has two web browser windows open in order to access two web sites. The transport layer ensures the correct web page is delivered to the correct browser window.
A corporate worker is accessing a web server located on a corporate network. The transport layer formats the screen so the web page appears properly no matter what device is being used to view the web site.
Question 18

A user opens three browsers on the same PC to access www.cisco.com to search for certification course information. The Cisco web server sends a datagram as a reply to the request from one of the webbrowsers. Which inform

The destination IP address
The destination port number
The source IP address
The source port number
Question 19
Which twotasks are functions of the presentation layer? (Choose two.)

Compression
Addressing
Encryption
Session control
Authentication
Question 20
What is a key characteristic of the peer-to-peer networking model?

Wireless networking
Social networking without the Internet
Network printing using a print server•
Resource sharing without a dedicated server
Question 21
A technician can ping the IP address of the web server of a remote company but cannot successfully ping the URL address of the same web server. Which software utility can the technician use to diagnose the problem?

Tracert
Ipconfig
Netstat
Nslookup
Question 22
Which domain name would be an example of a top-level domain?

Www.cisco.com
Cisco.com
.com
Root.cisco.com
Question 23
A PC obtains its IP address from a DHCP server. If the PC is taken off the network for repair, what happens to the IP address configuration?

The configuration is permanent and nothing changes.
The address lease is automatically renewed until the PC is returned
The address is returned to the pool for reuse when the lease expires.
The configuration is held by the server to be reissued when the PC is returned.
Question 24
A wireless host needs to request an IP address. What protocol would be used to process the request?

FTP
HTTP
DHCP
ICMP
SNMP
Question 25
Which example of malicious code would be classified as a Trojan horse?

Malware that was written to look like a video game
Malware that requires manual user intervention to spread between systems
Malware that attaches itself to a legitimate program and spreads to other programs when launched
Malware that can automatically spread from one system to another by exploiting a vulnerability in the target
Question 26
When applied to a router, which command would help mitigate brute-force password attacks against the router?

Exec-timeout 30
Service password-encryption
Banner motd $Max failed logins = 5$
Login block-for 60 attempts 5 within 60
Question 27
A company is expanding its business to other countries. All branch offices must remain connected to corporate headquarters at all times. Which network technology is required to support this requirement?

LAN
MAN
WAN
WLAN
Question 28
A home user is looking for an ISP connection that provides high speed digital transmission over regular phone lines. What ISP connection type should be used?

DSL
Dial-up
Satellite
Cell modem
Cable modem
Question 29
How does quality of service help a network support a wide range of applications and services?

By limiting the impact of a network failure
By allowing quick recovery from network failures
By providing mechanisms to manage congested network traffic
By providing the ability for the network to grow to accommodate new users
Question 30
On which switch interface would an administrator configure an IP address so that the switch can be managed remotely?•

FastEthernet0/1
VLAN1
Vty 0
Console 0

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  • bzhnico255074 fév 2019Hesite pas a en faire d autres comme ca
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