CCNA 1 v7.0 Final Exam Answers Full – Introduction to Networks Flashcards
Which two traffic types use the Real-Time Transport Protocol (RTP)? (Choose two.)
video
web
file transfer
voice
peer to peer
video
voice
Which wireless technology has low-power and data rate requirements making it popular in home automation applications?
ZigBee
LoRaWAN
5G
Wi-Fi
ZigBee
Which layer of the TCP/IP model provides a route to forward messages through an internetwork?
application
network access
internet
transport
internet
Which type of server relies on record types such as A, NS, AAAA, and MX in order to provide services?
DNS
email
file
web
DNS
What are proprietary protocols?
protocols developed by private organizations to operate on any vendor hardware
protocols that can be freely used by any organization or vendor
protocols developed by organizations who have control over their definition and operation
a collection of protocols known as the TCP/IP protocol suite
protocols developed by organizations who have control over their definition and operation
What service is provided by DNS?
Resolves domain names, such as cisco.com, into IP addresses.
A basic set of rules for exchanging text, graphic images, sound, video, and other multimedia files on the web.
Allows for data transfers between a client and a file server.
Uses encryption to secure the exchange of text, graphic images, sound, and video on the web.
Resolves domain names, such as cisco.com, into IP addresses.
A client packet is received by a server. The packet has a destination port number of 110. What service is the client requesting?
DNS
DHCP
SMTP
POP3
POP3
What command can be used on a Windows PC to see the IP configuration of that computer?
show ip interface brief
ping
show interfaces
ipconfig
ipconfig
A wired laser printer is attached to a home computer. That printer has been shared so that other computers on the home network can also use the printer. What networking model is in use?
client-based
master-slave
point-to-point
peer-to-peer (P2P)
peer-to-peer (P2P)
What characteristic describes a virus?
a network device that filters access and traffic coming into a network
the use of stolen credentials to access private data
an attack that slows or crashes a device or network service
malicious software or code running on an end device
malicious software or code running on an end device
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?
financial transactions, web page, audio conference
audio conference, financial transactions, web page
financial transactions, audio conference, web page
audio conference, web page, financial transactions
audio conference, financial transactions, web page
Match the description to the IPv6 addressing component. (Not all options are used.)
This part of the address is used by an organization to identify subnets.
This network portion of the address is assigned by the provider.
This part of the address is the equivalent to the host portion of an IPv4 address.
global routing prefix
subnet mask
subnet ID
interface ID
This part of the address is used by an organization to identify subnets. - subnet ID
This network portion of the address is assigned by the
provider. - global routing prefix
This part of the address is the equivalent to the host portion of an IPv4 address. - interface ID
Refer to the exhibit. If Host1 were to transfer a file to the server, what layers of the TCP/IP model would be used?
ISP
/
R1----R2
| | Sw1 Sw2
| | Host1 SRV
only application and Internet layers
only Internet and network access layers
only application, Internet, and network access layers
application, transport, Internet, and network access layers
only application, transport, network, data link, and physical layers
application, session, transport, network, data link, and physical layers
application, transport, Internet, and network access layers
Match the characteristic to the forwarding method. (Not all options are used.)
always stores the entire frame
checks the CRC before forwarding
checks the frame length before forwarding
does not forward broadcasts
has low latency
may forward runt frames
begins forwarding when the destination address is received
cut-through
Target
Target
Target
store-and-forward
Target
Target
Target
cut-through
has low latency
may forward runt frames
begins forwarding when the destination address is received
store-and-forward
always stores the entire frame
checks the CRC before forwarding
checks the frame length before forwarding
Refer to the exhibit. The IP address of which device interface should be used as the default gateway setting of host H1?
ISP
/
R2
/ \ R1 R3 | sw | \ \ host1 pc pc
R1: S0/0/0
R2: S0/0/1
R1: G0/0
R2: S0/0/0
R1: G0/0
What service is provided by Internet Messenger?
An application that allows real-time chatting among remote users.
Allows remote access to network devices and servers.
Resolves domain names, such as cisco.com, into IP addresses.
Uses encryption to provide secure remote access to network devices and servers.
An application that allows real-time chatting among remote users.
Refer to the exhibit. Match the network with the correct IP address and prefix that will satisfy the usable host addressing requirements for each network.
Network A
Network B
Network C
Network D
192.168.0.96/27
192.168.0.128/25
192.168.0.80/30
192.168.0.0/26
Network A - 192.168.0.128/25
Network B - 192.168.0.0/26
Network C - 192.168.0.96/27
Network D - 192.168.0.80/30
Refer to the exhibit. Which protocol was responsible for building the table that is shown?
<output>
Interface: 192.168.1.67
Internet Address
192.168.1.254
192.168.1.255
224.0.0.22
224.0.0.251
224.0.0.252
255.255.255.255
Interface: 10.82.253.91
Internet Address
10.82.253.92
224.0.0.22
224.0.0.251
224.0.0.252
255.255.255.255
Physical Address
64-0f-29-0d-36-91
ff-ff-ff-ff-ff-ff
01-00-5e-00-00-16
01-00-5e-00-00-fb
01-00-5e-00-00-fc
ff-ff-ff-ff-ff-ff
--- 0x10
Physical Address
64-0f-29-0d-36-91
01-00-5e-00-00-16
01-00-5e-00-00-fb
01-00-5e-00-00-fc
ff-ff-ff-ff-ff-ff
Type
dynamic
static
static
static
static
static
Type
dynamic
static
static
static
static
DHCP
ARP
DNS
ICMP
</output>
ARP
A network administrator notices that some newly installed Ethernet cabling is carrying corrupt and distorted data signals. The new cabling was installed in the ceiling close to fluorescent lights and electrical equipment. Which two factors may interfere with the copper cabling and result in signal distortion and data corruption? (Choose two.)
crosstalk
extended length of cabling
RFI
EMI
signal attenuation
RFI
EMI
A host is trying to send a packet to a device on a remote LAN segment, but there are currently no mappings in its ARP cache. How will the device obtain a destination MAC address?
(A host is trying to send a packet to a device on a remote LAN segment, but there are currently no mappings in the ARP cache. How will the device obtain a destination MAC address?)
It will send the frame and use its own MAC address as the destination.
It will send an ARP request for the MAC address of the destination device.
It will send the frame with a broadcast MAC address.
It will send a request to the DNS server for the destination MAC address.
It will send an ARP request for the MAC address of the default gateway.
It will send an ARP request for the MAC address of the default gateway.
A client packet is received by a server. The packet has a destination port number of 53. What service is the client requesting?
DNS
NetBIOS (NetBT)
POP3
IMAP
DNS
A network administrator is adding a new LAN to a branch office. The new LAN must support 25 connected devices. What is the smallest network mask that the network administrator can use for the new network?
255.255.255.128
255.255.255.192
255.255.255.224
255.255.255.240
255.255.255.224
What characteristic describes a Trojan horse?
malicious software or code running on an end device
an attack that slows or crashes a device or network service
the use of stolen credentials to access private data
a network device that filters access and traffic coming into a network
malicious software or code running on an end device
What service is provided by HTTPS?
Uses encryption to provide secure remote access to network devices and servers.
Resolves domain names, such as cisco.com, into IP addresses.
Uses encryption to secure the exchange of text, graphic images, sound, and video on the web.
Allows remote access to network devices and servers.
Uses encryption to secure the exchange of text, graphic images, sound, and video on the web.
A technician with a PC is using multiple applications while connected to the Internet. How is the PC able to keep track of the data flow between multiple application sessions and have each application receive the correct packet flows?
The data flow is being tracked based on the destination MAC address of the technician PC.
The data flow is being tracked based on the source port number that is used by each application.
The data flow is being tracked based on the source IP address that is used by the PC of the technician.
The data flow is being tracked based on the destination IP address that is used by the PC of the technician.
The data flow is being tracked based on the source port number that is used by each application.
A network administrator is adding a new LAN to a branch office. The new LAN must support 61 connected devices. What is the smallest network mask that the network administrator can use for the new network?
255.255.255.240
255.255.255.224
255.255.255.192
255.255.255.128
255.255.255.192
Refer to the exhibit. Match the network with the correct IP address and prefix that will satisfy the usable host addressing requirements for each network. (Not all options are used.)
Network C –sw–r1—–r2—- Network D
25 Hosts | | 2 Hosts
Network B Network A
50 Hosts 100 Hosts
Network A
Network B
Network C
Network D
192.168.0.0/24
192.168.0.192/27
192.168.0.228/32
192.168.0.0/25
192.168.0.224/30
192.168.0.128/26
Network A - 192.168.0.0/25
Network B - 192.168.0.128/26
Network C - 192.168.0.192/27
Network D - 192.168.0.224/30
What characteristic describes a DoS attack?
the use of stolen credentials to access private data
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
an attack that slows or crashes a device or network service
an attack that slows or crashes a device or network service
Match the application protocols to the correct transport protocols. (TCP) and (UDP)
DHCP
FTP
HTTP
SMTP
TFTP
(TCP)
FTP
HTTP
SMTP
(UDP)
DHCP
TFTP
What service is provided by SMTP?
Allows clients to send email to a mail server and the servers to send email to other servers.
Allows remote access to network devices and servers.
Uses encryption to provide secure remote access to network devices and servers.
An application that allows real-time chatting among remote users.
Allows clients to send email to a mail server and the servers to send email to other servers.
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.
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.
Refer to the exhibit. Host B on subnet Teachers transmits a packet to host D on subnet Students. Which Layer 2 and Layer 3 addresses are contained in the PDUs that are transmitted from host B to the router?
HOST A \ / HOSTC
sw——r——-sw
HOSTB / \ HOSTD
Layer 2 destination address = 00-00-0c-94-36-ab
Layer 2 source address = 00-00-0c-94-36-bb
Layer 3 destination address = 172.16.20.200
Layer 3 source address = 172.16.10.200
Layer 2 destination address = 00-00-0c-94-36-dd
Layer 2 source address = 00-00-0c-94-36-bb
Layer 3 destination address = 172.16.20.200
Layer 3 source address = 172.16.10.200
Layer 2 destination address = 00-00-0c-94-36-cd
Layer 2 source address = 00-00-0c-94-36-bb
Layer 3 destination address = 172.16.20.99
Layer 3 source address = 172.16.10.200
Layer 2 destination address = 00-00-0c-94-36-ab
Layer 2 source address = 00-00-0c-94-36-bb
Layer 3 destination address = 172.16.20.200
Layer 3 source address = 172.16.100.200
Layer 2 destination address = 00-00-0c-94-36-ab
Layer 2 source address = 00-00-0c-94-36-bb
Layer 3 destination address = 172.16.20.200
Layer 3 source address = 172.16.10.200
What does the term “attenuation” mean in data communication?
strengthening of a signal by a networking device
leakage of signals from one cable pair to another
time for a signal to reach its destination
loss of signal strength as distance increases
loss of signal strength as distance increases
Refer to the exhibit. An administrator is trying to configure the switch but receives the error message that is displayed in the exhibit. What is the problem?
Switch1> config t
% Invalid input detected at ‘^’ marker.
The entire command, configure terminal, must be used.
The administrator is already in global configuration mode.
The administrator must first enter privileged EXEC mode before issuing the command.
The administrator must connect via the console port to access global configuration mode.
The administrator must first enter privileged EXEC mode before issuing the command.
Which two protocols operate at the top layer of the TCP/IP protocol suite? (Choose two.)
TCP
IP
UDP
POP
DNS
Ethernet
POP
DNS
A company has a file server that shares a folder named Public. The network security policy specifies that the Public folder is assigned Read-Only rights to anyone who can log into the server while the Edit rights are assigned only to the network admin group. Which component is addressed in the AAA network service framework?
automation
accounting
authentication
authorization
authorization
What three requirements are defined by the protocols used in network communcations to allow message transmission across a network? (Choose three.)
message size
message encoding
connector specifications
media selection
delivery options
end-device installation
message size
message encoding
delivery options
What are two characteristics of IP? (Choose two.)
does not require a dedicated end-to-end connection
operates independently of the network media
retransmits packets if errors occur
re-assembles out of order packets into the correct order at the receiver end
guarantees delivery of packets
does not require a dedicated end-to-end connection
operates independently of the network media
An employee of a large corporation remotely logs into the company using the appropriate username and password. The employee is attending an important video conference with a customer concerning a large sale. It is important for the video quality to be excellent during the meeting. The employee is unaware that after a successful login, the connection to the company ISP failed. The secondary connection, however, activated within seconds. The disruption was not noticed by the employee or other employees.
What three network characteristics are described in this scenario? (Choose three.)
security
quality of service
scalability
powerline networking
integrity
fault tolerance
security
quality of service
fault tolerance
What are two common causes of signal degradation when using UTP cabling? (Choose two.)
improper termination
low-quality shielding in cable
installing cables in conduit
low-quality cable or connectors
loss of light over long distances
improper termination
low-quality cable or connectors
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
192.168.1.64/26
Refer to the exhibit. On the basis of the output, which two statements about network connectivity are correct? (Choose two.)
C:\Windows\system32> tracert 192.168.100.1
Tracing route to 192.168.100.1 over a maximum of 30 hops
1 1 ms <1 ms <1 ms 10.10.10.10
2 1 ms 2 ms 2 ms 192.168.1.22
3 1 ms 2 ms 2 ms 192.168.1.62
4 1 ms 2 ms 2 ms 172.16.1.1
5 1 ms 2 ms 2 ms 192.168.100.1
Trace complete.
This host does not have a default gateway configured.
There are 4 hops between this device and the device at 192.168.100.1.
There is connectivity between this device and the device at 192.168.100.1.
The connectivity between these two hosts allows for videoconferencing calls.
The average transmission time between the two hosts is 2 milliseconds.
There are 4 hops between this device and the device at 192.168.100.1.
There is connectivity between this device and the device at 192.168.100.1.
Which two statements describe how to assess traffic flow patterns and network traffic types using a protocol analyzer? (Choose two.)
Capture traffic on the weekends when most employees are off work.
Capture traffic during peak utilization times to get a good representation of the different traffic types.
Only capture traffic in the areas of the network that receive most of the traffic such as the data center.
Perform the capture on different network segments.
Only capture WAN traffic becau
Capture traffic during peak utilization times to get a good representation of the different traffic types.
Perform the capture on different network segments.
What is the consequence of configuring a router with the ipv6 unicast-routing global configuration command?
All router interfaces will be automatically activated.
The IPv6 enabled router interfaces begin sending ICMPv6 Router Advertisement messages.
Each router interface will generate an IPv6 link-local address.
It statically creates a global unicast address on this router.
The IPv6 enabled router interfaces begin sending ICMPv6 Router Advertisement messages.
Which three layers of the OSI model map to the application layer of the TCP/IP model? (Choose three.)
application
network
data link
session
presentation
transport
application
session
presentation
Refer to the exhibit. If PC1 is sending a packet to PC2 and routing has been configured between the two routers, what will R1 do with the Ethernet frame header attached by PC1?
nothing, because the router has a route to the destination network
open the header and use it to determine whether the data is to be sent out S0/0/0
open the header and replace the destination MAC address with a new one
remove the Ethernet header and configure a new Layer 2 header before sending it out S0/0/0
remove the Ethernet header and configure a new Layer 2 header before sending it out S0/0/0
What will happen if the default gateway address is incorrectly configured on a host?
The host cannot communicate with other hosts in the local network.
The host cannot communicate with hosts in other networks.
A ping from the host to 127.0.0.1 would not be successful.
The host will have to use ARP to determine the correct address of the default gateway.
The switch will not forward packets initiated by the host.
The host cannot communicate with hosts in other networks.
What are two features of ARP? (Choose two.)
When a host is encapsulating a packet into a frame, it refers to the MAC address table to determine the mapping of IP addresses to MAC addresses.
An ARP request is sent to all devices on the Ethernet LAN and contains the IP address of the destination host and its multicast MAC address.
If a host is ready to send a packet to a local destination device and it has the IP address but not the MAC address of the destination, it generates an ARP broadcast.
If no device responds to the ARP request, then the originating node will broadcast the data packet to all devices on the network segment.
If a device receiving an ARP request has the destination IPv4 address, it responds with an ARP reply.
If a host is ready to send a packet to a local destination device and it has the IP address but not the MAC address of the destination, it generates an ARP broadcast.
If a device receiving an ARP request has the destination IPv4 address, it responds with an ARP reply.
A network administrator is adding a new LAN to a branch office. The new LAN must support 90 connected devices. What is the smallest network mask that the network administrator can use for the new network?
255.255.255.128
255.255.255.240
255.255.255.248
255.255.255.224
255.255.255.128
What are two ICMPv6 messages that are not present in ICMP for IPv4? (Choose two.)
Neighbor Solicitation
Destination Unreachable
Host Confirmation
Time Exceeded
Router Advertisement
Route Redirection
Neighbor Solicitation
Router Advertisement
A client packet is received by a server. The packet has a destination port number of 80. What service is the client requesting?
DHCP
SMTP
DNS
HTTP
HTTP
What is an advantage for small organizations of adopting IMAP instead of POP?
POP only allows the client to store messages in a centralized way, while IMAP allows distributed storage.
Messages are kept in the mail servers until they are manually deleted from the email client.
When the user connects to a POP server, copies of the messages are kept in the mail server for a short time, but IMAP keeps them for a long time.
IMAP sends and retrieves email, but POP only retrieves email.
Messages are kept in the mail servers until they are manually deleted from the email client.
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
nslookup
Which two functions are performed at the LLC sublayer of the OSI Data Link Layer to facilitate Ethernet communication? (Choose two.)
implements CSMA/CD over legacy shared half-duplex media
enables IPv4 and IPv6 to utilize the same physical medium
integrates Layer 2 flows between 10 Gigabit Ethernet over fiber and 1 Gigabit Ethernet over copper
implements a process to delimit fields within an Ethernet 2 frame
places information in the Ethernet frame that identifies which network layer protocol is being encapsulated by the frame
enables IPv4 and IPv6 to utilize the same physical medium
places information in the Ethernet frame that identifies which network layer protocol is being encapsulated by the frame
The global configuration command ip default-gateway 172.16.100.1 is applied to a switch. What is the effect of this command?
The switch can communicate with other hosts on the 172.16.100.0 network.
The switch can be remotely managed from a host on another network.
The switch is limited to sending and receiving frames to and from the gateway 172.16.100.1.
The switch will have a management interface with the address 172.16.100.1.
The switch can be remotely managed from a host on another network.
What happens when the transport input ssh command is entered on the switch vty lines?
The SSH client on the switch is enabled.
The switch requires a username/password combination for remote access.
Communication between the switch and remote users is encrypted.
The switch requires remote connections via a proprietary client software.
Communication between the switch and remote users is encrypted.
Match the type of threat with the cause. (Not all options are used.)
hardware threats
environmental threats
electrical threats
maintenance threats
poor handling of key electrical
components (electrostatic discharge),
lack of critical spare parts, poor
cabling, and poor labeling
unauthorized access resulting in loss
of data
temperature extremes (too hot or too
cold) or humidity extremes (too wet or
too dry)
physical damage to servers, routers,
switches, cabling plant, and
workstations
voltage spikes, insufficient supply
voltage (brownouts), unconditioned
power (noise), and total power loss
poor handling of key electrical
components (electrostatic discharge),
lack of critical spare parts, poor
cabling, and poor labeling
maintenance threats
temperature extremes (too hot or too
cold) or humidity extremes (too wet or
too dry)
environmental threats
physical damage to servers, routers,
switches, cabling plant, and
workstations
hardware threats
voltage spikes, insufficient supply
voltage (brownouts), unconditioned
power (noise), and total power loss
electrical threats
A disgruntled employee is using some free wireless networking tools to determine information about the enterprise wireless networks. This person is planning on using this information to hack the wireless network. What type of attack is this?
DoS
access
reconnaissance
Trojan horse
reconnaissance
What service is provided by HTTP?
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.
An application that allows real-time chatting among remote users.
A basic set of rules for exchanging text, graphic images, sound, video, and other multimedia files on the web.
A basic set of rules for exchanging text, graphic images, sound, video, and other multimedia files on the web.
A client packet is received by a server. The packet has a destination port number of 67. What service is the client requesting?
FTP
DHCP
Telnet
SSH
DHCP
What are two problems that can be caused by a large number of ARP request and reply messages? (Choose two.)
Switches become overloaded because they concentrate all the traffic from the attached subnets.
The ARP request is sent as a broadcast, and will flood the entire subnet.
The network may become overloaded because ARP reply messages have a very large payload due to the 48-bit MAC address and 32-bit IP address that they contain.
A large number of ARP request and reply messages may slow down the switching process, leading the switch to make many changes in its MAC table.
All ARP request messages must be processed by all nodes on the local network.
The ARP request is sent as a broadcast, and will flood the entire subnet.
All ARP request messages must be processed by all nodes on the local network.
A group of Windows PCs in a new subnet has been added to an Ethernet network. When testing the connectivity, a technician finds that these PCs can access local network resources but not the Internet resources. To troubleshoot the problem, the technician wants to initially confirm the IP address and DNS configurations on the PCs, and also verify connectivity to the local router. Which three Windows CLI commands and utilities will provide the necessary information? (Choose three.)
netsh interface ipv6 show neighbor
arp -a
tracert
ping
ipconfig
nslookup
telnet
ping
ipconfig
nslookup
During the process of forwarding traffic, what will the router do immediately after matching the destination IP address to a network on a directly connected routing table entry?
analyze the destination IP address
switch the packet to the directly connected interface
look up the next-hop address for the packet
discard the traffic after consulting the route table
switch the packet to the directly connected interface
