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WorksheetsNET01 - FINALS P2
Total questions: 90
Worksheet time: 52mins
A new network administrator has been asked to enter a banner message on a Cisco device. What is the fastest way a network administrator could test whether the banner is properly configured?
Enter CTRL-Z at the privileged mode prompt.
Exit privileged EXEC mode and press Enter .
Exit global configuration mode.
What method is used to manage contention-based access on a wireless network?
CSMA/CA
CSMA/CD
What is a function of the data link layer?
provides the formatting of data
provides end-to-end delivery of data between hosts
provides delivery of data between two applications
provides for the exchange of frames over a common local media
What is the purpose of the TCP sliding window?
to ensure that segments arrive in order at the destination
to end communication when data transmission is complete
to inform a source to retransmit data from a specific point forward
to request that a source decrease the rate at which it transmits data
What characteristic describes spyware?
software that is installed on a user device and collects information about the user
an attack that slows or crashes a device or network service
the use of stolen credentials to access private data
Which switching method drops frames that fail the FCS check?
store-and-forward switching
cut-through switching
Which range of link-local addresses can be assigned to an IPv6-enabled interface?
FEC0::/10
FDEE::/7
FE80::/10
FF00::/8
A user is attempting to access http://www.cisco.com/ without success. Which two configuration values must be set on the host to allow this access? (Choose two.)
DNS server
source port number
HTTP server
source MAC address
default gateway
Which two statements accurately describe an advantage or a disadvantage when deploying NAT for IPv4 in a network? (Choose two.)
NAT introduces problems for some applications that require end-to-end connectivity.
NAT will impact negatively on switch performance.
NAT provides a solution to slow down the IPv4 address depletion.
NAT improves packet handling.
What would be the interface ID of an IPv6 enabled interface with a MAC address of 1C-6F-65-C2-BD-F8 when the interface ID is generated by using the EUI-64 process?
0C6F:65FF:FEC2:BDF8
1E6F:65FF:FEC2:BDF8
C16F:65FF:FEC2:BDF8
106F:65FF:FEC2:BDF8
Refer to the exhibit. PC1 issues an ARP request because it needs to send a packet to PC2. In this scenario, what will happen next?
PC2 will send an ARP reply with the PC2 MAC address.
SW1 will send an ARP reply with the PC2 MAC address.
RT1 will send an ARP reply with the PC2 MAC address.
What service is provided by BOOTP?
Uses encryption to secure the exchange of text, graphic images, sound, and video on the web.
Allows for data transfers between a client and a file server.
Legacy application that enables a diskless workstation to discover its own IP address and find a BOOTP server on the network.
A basic set of rules for exchanging text, graphic images, sound, video, and other multimedia files on the web.
What characteristic describes adware?
a network device that filters access and traffic coming into a network
software that is installed on a user device and collects information about the user
the use of stolen credentials to access private data
an attack that slows or crashes a device or network service
When a switch configuration includes a user-defined error threshold on a per-port basis, to which switching method will the switch revert when the error threshold is reached?
cut-through
store-and-forward
fast-forward
fragment-free
Match a statement to the related network model: peer-to-peer network
no dedicated server is required
client and server roles are set on a per request basis
requires a specific user interface
a background service is required
Match a statement to the related network model: peer-to-peer application
no dedicated server is required
client and server roles are set on a per request basis
requires a specific user interface
a background service is required
What are two primary responsibilities of the Ethernet MAC sublayer? (Choose two.)
error detection
frame delimiting
accessing the media
data encapsulation
logical addressing
Refer to the exhibit. What three facts can be determined from the viewable output of the show ip interface brief command? (Choose three.)
The switch can be remotely managed.
One device is attached to a physical interface.
The default SVI has been configured.
Two devices are attached to the switch.
Two physical interfaces have been configured.
This field helps to direct the frame toward its destination.
addressing
error detection
type
frame start
This field checks if the frame has been damaged during the transfer.
addressing
error detection
type
frame start
This field is used by the LLC to identify the Layer 3 protocol.
addressing
error detection
type
frame start
This field identifies the beginning of a frame.
addressing
error detection
type
frame start
What is the subnet ID associated with the IPv6 address 2001:DA48:FC5:A4:3D1B::1/64?
2001:DA48::/64
2001:DA48:FC5::A4:/64
2001:DA48:FC5:A4::/64
2001::/64
Users are reporting longer delays in authentication and in accessing network resources during certain time periods of the week. What kind of information should network engineers check to find out if this situation is part of a normal network behavior?
syslog records and messages
the network performance baseline
debug output and packet captures
network configuration files
How does the service password-encryption command enhance password security on Cisco routers and switches?
It requires encrypted passwords to be used when connecting remotely to a router or switch with Telnet.
It encrypts passwords that are stored in router or switch configuration files.
It encrypts passwords as they are sent across the network.
Which two statements are correct in a comparison of IPv4 and IPv6 packet headers?
The Source Address field name from IPv4 is kept in IPv6.
The Version field from IPv4 is not kept in IPv6.
The Destination Address field is new in IPv6.
The Header Checksum field name from IPv4 is kept in IPv6.
The Time-to-Live field from IPv4 has been replaced by the Hop Limit field in IPv6.
A network administrator wants to have the same network mask for all networks at a particular small site. The site has the following networks and number of devices:
IP phones – 22 addresses
PCs – 20 addresses needed
Printers – 2 addresses needed
Scanners – 2 addresses needed
The network administrator has deemed that 192.168.10.0/24 is to be the network used at this site. Which single subnet mask would make the most efficient use of the available addresses to use for the four subnetworks?
255.255.255.192
255.255.255.252
255.255.255.240
255.255.255.224
What characteristic describes identity theft?
the use of stolen credentials to access private data
software on a router that filters traffic based on IP addresses or applications
software that identifies fast-spreading threats
a tunneling protocol that provides remote users with secure access into the network of an organization
A network administrator is adding a new LAN to a branch office. The new LAN must support 200 connected devices. What is the smallest network mask that the network administrator can use for the new network?
255.255.255.240
255.255.255.0
255.255.255.248
255.255.255.224
What are three commonly followed standards for constructing and installing cabling? (Choose three.)
connector color
tensile strength of plastic insulator
cable lengths
pinouts
connector types
Refer to the exhibit. What is wrong with the displayed termination?
The woven copper braid should not have been removed.
The wrong type of connector is being used.
The untwisted length of each wire is too long.
The wires are too thick for the connector that is used.
An IP Address is...(Choose three)
contained in the Layer 3 header
separated into a network portion and a unique identifier
32 or 128 bits
separated into OUI and a unique identifier
48 bits
A MAC Address is...(Choose three)
contained in the Layer 2 header
separated into a network portion and a unique identifier
32 or 128 bits
separated into OUI and a unique identifier
48 bits
A client packet is received by a server. The packet has a destination port number of 143. What service is the client requesting?
IMAP
FTP
SSH
Telnet
What are two characteristics shared by TCP and UDP? (Choose two.)
default window size
port numbering
use of checksum
3-way handshake
connectionless communication
Refer to the exhibit. Which two network addresses can be assigned to the network containing 10 hosts? Your answers should waste the fewest addresses, not reuse addresses that are already assigned, and stay within the 10.18.10.0/24 range of addresses. (Choose two.)
10.18.10.200/28
10.18.10.208/28
10.18.10.224/28
10.18.10.200/27
10.18.10.224/27
A client packet is received by a server. The packet has a destination port number of 21. What service is the client requesting?
FTP
SSH
Telnet
What attribute of a NIC would place it at the data link layer of the OSI model?
attached Ethernet cable
IP address
MAC address
RJ-45 port
TCP/IP protocol stack
A network administrator is adding a new LAN to a branch office. The new LAN must support 10 connected devices. What is the smallest network mask that the network administrator can use for the new network?
255.255.255.192
255.255.255.248
255.255.255.224
255.255.255.240
What technique is used with UTP cable to help protect against signal interference from crosstalk?
wrapping a foil shield around the wire pairs
twisting the wires together into pairs
terminating the cable with special grounded connectors
encasing the cables within a flexible plastic sheath
Refer to the exhibit. The switches are in their default configuration. Host A needs to communicate with host D, but host A does not have the MAC address for its default gateway. Which network hosts will receive the ARP request sent by host A?
only router R1
only hosts A, B, C, and D
only hosts B and C
only hosts B, C, and router R1
Refer to the exhibit. A network engineer has been given the network address of 192.168.99.0 and a subnet mask of 255.255.255.192 to subnet across the four networks shown. How many total host addresses are unused across all four subnets?
88
200
72
224
Which connector is used with twisted-pair cabling in an Ethernet LAN?
RJ11
SC Connector
RJ 45
A client packet is received by a server. The packet has a destination port number of 22. What service is the client requesting?
SSH
Telnet
FTP
What characteristic describes an IPS?
a tunneling protocol that provides remote users with secure access into the network of an organization
software on a router that filters traffic based on IP addresses or applications
a network device that filters access and traffic coming into a network
What service is provided by DHCP?
An application that allows real-time chatting among remote users.
Allows remote access to network devices and servers.
Dynamically assigns IP addresses to end and intermediary devices.
Match the header field with the appropriate layer of the OSI model: LAYER 2
802.2 header
FCS (frame check sequence)
destination MAC address
TTL
Acknowledgement number
Match the header field with the appropriate layer of the OSI model: LAYER 3
802.2 header
source IP address
destination MAC address
TTL
Acknowledgement number
Match the header field with the appropriate layer of the OSI model: LAYER 4
802.2 header
source IP address
destination port number
TTL
Acknowledgement number
Which wireless technology has low-power and low-data rate requirements making it popular in IoT environments?
Bluetooth
Zigbee
WiMAX
Wi-Fi
What two ICMPv6 message types must be permitted through IPv6 access control lists to allow resolution of Layer 3 addresses to Layer 2 MAC addresses? (Choose two.)
neighbor solicitations
neighbor advertisements
router solicitations
router advertisements
echo requests
A client is using SLAAC to obtain an IPv6 address for its interface. After an address has been generated and applied to the interface, what must the client do before it can begin to use this IPv6 address?
It must send a DHCPv6 INFORMATION-REQUEST message to request the address of the DNS server.
It must send an ICMPv6 Router Solicitation message to determine what default gateway it should use.
It must send an ICMPv6 Neighbor Solicitation message to ensure that the address is not already in use on the network.
It must send an ICMPv6 Router Solicitation message to determine what default gateway it should use.
Two pings were issued from a host on a local network. The first ping was issued to the IP address of the default gateway of the host and it failed. The second ping was issued to the IP address of a host outside the local network and it was successful. What is a possible cause for the failed ping?
The default gateway is not operational.
The default gateway device is configured with the wrong IP address.
Security rules are applied to the default gateway device, preventing it from processing ping requests.
The TCP/IP stack on the default gateway is not working properly.
An organization is assigned an IPv6 address block of 2001:db8:0:ca00::/56. How many subnets can be created without using bits in the interface ID space?
256
512
1024
4096
What subnet mask is needed if an IPv4 network has 40 devices that need IP addresses and address space is not to be wasted?
255.255.255.240
255.255.255.128
255.255.255.192
255.255.255.224
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
BB:BB:BB:BB:BB:BB
172.168.11.88
172.168.10.65
What is a benefit of using cloud computing in networking?
Technology is integrated into every-day appliances allowing them to interconnect with other devices, making them more ‘smart’ or automated.
Network capabilities are extended without requiring investment in new infrastructure, personnel, or software.
End users have the freedom to use personal tools to access information and communicate across a business network.
Which two statements are correct about MAC and IP addresses during data transmission if NAT is not involved?
Destination IP addresses in a packet header remain constant along the entire path to a target host.
Every time a frame is encapsulated with a new destination MAC address, a new destination IP address is needed.
Destination and source MAC addresses have local significance and change every time a frame goes from one LAN to another.
Destination MAC addresses will never change in a frame that goes across seven routers.
What is one main characteristic of the data link layer?
It shields the upper layer protocol from being aware of the physical medium to be used in the communication.
It accepts Layer 3 packets and decides the path by which to forward the packet to a remote network.
It generates the electrical or optical signals that represent the 1 and 0 on the media.
What are three characteristics of the CSMA/CD process? (Choose three.)
A device listens and waits until the media is not busy before transmitting.
After detecting a collision, hosts can attempt to resume transmission after a random time delay has expired.
All of the devices on a segment see data that passes on the network medium.
A jam signal indicates that the collision has cleared and the media is not busy.
The device with the electronic token is the only one that can transmit after a collision.
Which information does the show startup-config command display?
the contents of the current running configuration file in the RAM
the contents of the saved configuration file in the NVRAM
Which two commands can be used on a Windows host to display the routing table? (Choose two.)
netstat -s
route print
show ip route
netstat -r
tracert
What are two functions that are provided by the network layer? (Choose two.)
directing data packets to destination hosts on other networks
placing data on the network medium
carrying data between processes that are running on source and destination hosts
providing dedicated end-to-end connections
providing end devices with a unique network identifier
Which two statements describe features of an IPv4 routing table on a router? (Choose two.)
Directly connected interfaces will have two route source codes in the routing table: C and S .
The netstat -r command can be used to display the routing table of a router.
It stores information about routes derived from the active router interfaces.
If a default static route is configured in the router, an entry will be included in the routing table with source code S .
What characteristic describes a VPN?
software on a router that filters traffic based on IP addresses or applications
software that identifies fast-spreading threats
a tunneling protocol that provides remote users with secure access into the network of an organization
a network device that filters access and traffic coming into a network
Why would a Layer 2 switch need an IP address?
to enable the switch to send broadcast frames to attached PCs
to enable the switch to function as a default gateway
to enable the switch to be managed remotely
to enable the switch to receive frames from attached PCs
the process of placing one message format inside another message format
message encapsulation
message sizing
message encoding
the process of breaking up a long message into individual pieces before being sent over the network
message encapsulation
message sizing
message encoding
the process of converting information from one format into another acceptable for transmission
message encapsulation
message sizing
message encoding
A user sends an HTTP request to a web server on a remote network. During encapsulation for this request, what information is added to the address field of a frame to indicate the destination?
the network domain of the destination host
the IP address of the default gateway
the MAC address of the destination host
the MAC address of the default gateway
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.
Data is being sent from a source PC to a destination server. Which three statements correctly describe the function of TCP or UDP in this situation? (Choose three.)
The source port field identifies the running application or service that will handle data returning to the PC.
UDP segments are encapsulated within IP packets for transport across the network.
The UDP destination port number identifies the application or service on the server which will handle the data.
TCP is the preferred protocol when a function requires lower network overhead.
The TCP source port number identifies the sending host on the network.
number of bytes a destination device can accept and process at one time
window size
sequence numbers
retransmission
acknowledgment
used to identify missing segments of data
window size
sequence numbers
retransmission
acknowledgment
method of managing segments of data loss
window size
sequence numbers
retransmission
acknowledgment
received by a sender before transmitting more segments in a session
window size
sequence numbers
retransmission
acknowledgment
Refer to the exhibit. A company uses the address block of 128.107.0.0/16 for its network. What subnet mask would provide the maximum number of equal size subnets while providing enough host addresses for each subnet in the exhibit?
255.255.255.192
255.255.255.0
255.255.255.128
255.255.255.240
255.255.255.224
A network administrator wants to have the same subnet mask for three subnetworks at a small site. The site has the following networks and numbers of devices:
Subnetwork A: IP phones – 10 addresses
Subnetwork B: PCs – 8 addresses
Subnetwork C: Printers – 2 addresses
What single subnet mask would be appropriate to use for the three subnetworks?
255.255.255.0
255.255.255.240
255.255.255.248
255.255.255.252
Match each item to the type of topology diagram on which it is typically identified: Physical Topology
location of a desktop PC in a classroom
path of cables that connect rooms to wiring closets
IP address of a server
USB port on a desktop PC in a classroom
Match each item to the type of topology diagram on which it is typically identified: Logical Topology
location of a desktop PC in a classroom
path of cables that connect rooms to wiring closets
IP address of a server
USB port on a desktop PC in a classroom
What two pieces of information are displayed in the output of the show ip interface brief command? (Choose two.)
IP addresses
interface descriptions
MAC addresses
speed and duplex settings
Layer 1 statuses
A user is complaining that an external web page is taking longer than normal to load.The web page does eventually load on the user machine. Which tool should the technician use with administrator privileges in order to locate where the issue is in the network?
ping
nslookup
tracert
ipconfig /displaydns
Which value, that is contained in an IPv4 header field, is decremented by each router that receives a packet?
Time-to-Live
Fragment Offset
Differentiated Services
Header Length
A network technician is researching the use of fiber optic cabling in a new technology center. Which two issues should be considered before implementing fiber optic media? (Choose two.)
Fiber optic cabling requires different termination and splicing expertise from what copper cabling requires.
Fiber optic provides higher data capacity but is more expensive than copper cabling.
Fiber optic cabling is susceptible to loss of signal due to RFI.
Fiber optic cable is able to withstand rough handling.
Fiber optic cabling requires specific grounding to be immune to EMI.
Match each description with an appropriate IP address: an experimental address
240.2.6.255
169.254.1.5
198.133.219.2
127.0.0.1
Match each description with an appropriate IP address: a link-local address
240.2.6.255
169.254.1.5
198.133.219.2
127.0.0.1
Match each description with an appropriate IP address: a public address
240.2.6.255
169.254.1.5
198.133.219.2
127.0.0.1
Match each description with an appropriate IP address: a loopback address
240.2.6.255
169.254.1.5
198.133.219.2
127.0.0.1
A user is executing a tracert to a remote device. At what point would a router, which is in the path to the destination device, stop forwarding the packet?
when the router receives an ICMP Time Exceeded message
when the RTT value reaches zero
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
Users report that the network access is slow. After questioning the employees, the network administrator learned that one employee downloaded a third-party scanning program for the printer. What type of malware might be introduced that causes slow performance of the network?
virus
worm
phishing
spam
