What is a characteristic of a fault tolerant network?
a network that protects confidential information from unauthorized access
a network that can expand quickly to support new user and applications without impacting the performance of the service delivered to existing users
a network that supports a mechanism for managing congestion and ensuring reliable delivery of content to all users
a network that recovers quickly when a failure occurs and depends on redundancy to limit the impact of a failure
Three bank employees are using the corporate network. The first employee uses a web browser to view a company web page in order to read some announcements. The second employee accesses the corporate database to perform some financial transactions. The third employee participates in an important live audio conference with other corporate managers in branch offices. If QoS is implemented on this network, what will be the priorities from highest to lowest of the different data types?
audio conference, financial transactions, web page
financial transactions, web page, audio conference
audio conference, web page, financial transactions
financial transactions, audio conference, web page
What is a benefit of using cloud computing in networking?
End users have the freedom to use personal tools to access information and communicate across a business network.
Network capabilities are extended without requiring investment in new infrastructure, personnel, or software.
Technology is integrated into everyday appliances allowing them to interconnect with other devices, making them more ‘smart’ or automated
Home networking uses existing electrical wiring to connect devices to the network wherever there is an electrical outlet, saving the cost of installing data cables.
What is the function of the shell in an OS?
It interacts with the device hardware
It interfaces between the users and the kernel.
It provides dedicated firewall services.
It provides the intrusion protection services for the device.
Which connection provides a secure CLI session with encryption to a Cisco switch?
a console connection
an AUX connection
a Telnet connection
an SSH connection
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?
The command is being entered from the wrong mode of operation.
The command syntax is wrong.
The subnet mask information is incorrect
The interface is shutdown and must be enabled before the switch will accept the IP address.
An administrator uses the CtrlShift6 key combination on a switch after issuing the ping command. What is the purpose of using these keystrokes?
to restart the ping process
to interrupt the ping process
to exit to a different configuration mode
to allow the user to complete the command
Refer to the exhibit. A network administrator is configuring access control to switch SW1. If the administrator uses a console connection to connect to the switch, which password is needed to access user exec mode?
letmein
secretin
lineconin
linevtyin
On which switch interface would an administrator configure an IP address so that the switch can be managed remotely?
FastEthernet0/1
vty 0
VLAN1
console 0
What is an advantage to using a protocol that is defined by an open standard?
A company can monopolize the market.
The protocol can only be run on equipment from a specific vendor.
An open standard protocol is not controlled or regulated by standards organizations.
It encourages competition and promotes choices
What protocol is responsible for controlling size of segments and the rate at which segments are exchanged between a web client and web server
TCP
IP
Ethernet
HTTP
What are two benefits of using a layered network model (choose two)?
It assists in protocol design
It speeds up packet delivery
It prevents designers from creating their own model
It prevents technology in one layer from affecting other layers
It ensures a device at one layer can function at the next higher layer
Which two OSI model layers have the same functionality as two layers of the TCP/IP model? (Choose two.)
data link
network
physical
session
transport
Which name is assigned to the transport layer PDU?
bits
data
frame
packet
segment
A network administrator is measuring the transfer of bits across the company backbone for a mission critical financial application. The administrator notices that the network throughout appears lower than the bandwidth expected. Which three factors could influence the differences in throughput? (Choose three.)
the amount of traffic that is currently crossing the network
the sophistication of the encapsulation method applied to the data
the type of traffic that is crossing the network
the latency that is created by the number of network devices that the data is crossing
the bandwidth of the WAN connection to the internet
the reliability of the gigabit Ethernet infrastructure of the backbone
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.
presentation layer
network layer
physical layer
data link layer
What is a characteristic of UTP cabling?
cancellation
cladding
immunity to electrical hazards
woven copper braid or metallic foil
Which three addresses are valid public addresses? (choose three)
198.133.219.17
192.168.1.245
10.15.250.5
128.107.12.117
192.15.301.240
64.104.78.227
What type of IPv6 address is FE80::1
loopback
link-local
multicast
global unicast
Why does a layer 3 device perform the ANDing process on a destination IP address and subnet mask?
to identify the broadcast address of the destination network
to identify the host address of the destination host
to identify faulty frames
to identify the network address of the destination network
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?
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
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
Which two roles can a computer assume in a peer-to-peer network where a file is being shared between two computers? (choose two)
client
master
server
slave
transient
which two protocols operate at the highest layer of the TCP/IP protocol stack? (choose two)
DNS
POP
UDP
What are two functions of NVRAM? (Choose two)
to retain contents when power is removed
to store the startup configuration file
to store the routing table
to contain the running configuration file
to store the ARP table
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
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?
What is the process of dividing a data stream into smaller pieces before transmission?
segmentation
encapsulation
encoding
flow control
What are two characteristics shared by TCP and UDP? (Choose two)
default window size
connectionless communication
port numbering
3-way handshake
use of checksum
ability to carry digitized voice
What subnet mask is needed if an IPv4 network has 40 devices that need IP addresses and address space is not to be wasted?
255.255.255.0
255.255.255.128
255.255.255.192
255.255.255.224
255.255.255.240
A network administrator wants to have the same subnet mask for three subnetworks at a small site. The site has the following networks and number of devices: Subnetwork A: IP phones - 10 addressses Subnetwork B: PCs - 8 addresses Subnetwork C: Printers - 2 addresses
255.255.255.248
255.255.255.252
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
What is the binary representation of 0xCA?
10111010
1110101
11001010
11011010
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
Which two functions are primary functions of a router? (Choose two)
packet fowarding
microsegmentation
domain name resolution
path selection
Which switching method has the lowest level of latency?
cut-through
store-and-foward
fragment-free
fast-foward
What will a host on an Ethernet network do if it received a frame with destination MAC address that does not match its own MAC address?
it will discard the frame
it will foward the frame to the next host
it will remove the frame from the media
it will strip off the data-link frame to check the desination IP address
During the encapsulation process, what occurs at the data link layer for a PC connected to an Ethernet network?
an IP address is added
the logical address is added
the physical address is added
the process port number is added
Which procedure is used to reduce the effect of crosstalk in copper cables
requiring proper grounding connections
twisting opposing circuit wire pairs together
wrapping the bundle of wires with metallic shielding
designing a cable infrastucture to avoid crosstalk interference
avoiding sharp bends during installation
What unique address is embedded in an Ethernet NIC and used for communication on an Ethernet network?
host address
IP address
MAC address
network address
What function does pressing the Tab key have when entering a command in IOS?
It aborts the current command and returns to configuration mode
It exits configuration mode and returns to user EXEC mode
It moves the cursor to the beginning of the next line
It completes the remainder of a partially typed word in a command
Refer to the exhibit. A network administrator is configuring access control to switch SW1. If the administrator has already logged into a Telnet session on the switch, which password is needed to access privileged EXEC mode?
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
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
On which switch interface would an administrator configure an IP address so that the switch can managed remotely?
VLAN 1
After making configuration changes on a Cisco switch, a network administrator issues a copy running-config startup-config command. What is the result of issuing this command
the new configuration will be stored in flash memory
the new configuration will be loaded if the switch is restarted
the current IOS file will be replaced with the newly configured files
the configuration changes will be removed and the original configuration will be restored
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
A wireless host needs to request an IP address. What protocol would be used to process the request?
FTP
DHCP
ICMP
SNMP
What address 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
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
What is the dotted decimal representation of the IPv4 address 11001011.00000000.0110001.11010011?
192.0.2.199
198.25.100.201
203.0.113.211
209.165.201.223
How many valid host addresses are available on an IPv4 subnet that is configured with a /26 mask
64
254
190
192
62
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
DNS server address
subnet mask
default gateway
DHCP server address
Which type of UTP cable is used to connect a PC to a switch port
console
rollover
crossover
straight-through
Which statement is true about variable-length subnet masking?
the size of each subnet may be different, depending on requirments
each subnet is the same size
subnets may only be subnetted one additional time
bits are returned, rather than borrowed, to create additional subnets
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?
192.168.10.0
192.168.10.128
192.168.10.192
192.168.10.224
192.168.10.240
What important information is added to the TCP/IP transport layer header to ensure communication and connectivity with a remote network device
timing and synchronization
destination and source port number s
destination and source physical addresses
destination and source logical network addresses
What is the function of the HTTP GET message?
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
What are two ways that TCP uses the sequence numbers in a segment? (choose two)
to identify missing segments at the destination
to reassemble the 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
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