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WorksheetsT316-Revesion
Total questions: 104
Worksheet time: 3hrs 28mins
Ability of computing equipment manufactured by different vendors to communicate with one another successfully over a network.
standard
interoperability
sneaker net
protocol
One sender to all addresses.
unicast
broadcast
multicast
The amount of time it takes for a data packet to go from one place to another.
latency
throughput
bandwidth
speed
VLANs improve network performance by segmenting broadcast domains.
True
False
VLANs can improve security by isolating sensitive data from the rest of the network.
True
False
PC1 sends an ARP broadcast frame. Which PC will receive the ARP broadcast frame?
PC2
PC3
PC4
PC5
PC6
PC2 sends an ARP broadcast frame. Which PCs will receive the ARP broadcast frame? (Choose all that apply.)
PC2
PC3
PC4
PC5
PC6
PC3 sends an ARP broadcast frame. Which PC will receive the ARP broadcast frame?
PC2
PC3
PC4
PC5
PC6
What is indicated by the term throughput?
the guaranteed data transfer rate offered by an ISP
the measure of the usable data transferred across the media
the time it takes for a message to get from sender to receiver
the measure of the bits transferred across the media over a given period of time
the capacity of a particular medium to carry data
Which characteristic describes crosstalk?
the distortion of the transmitted messages from signals carried in adjacent wires
the distortion of the network signal from fluorescent lighting
the weakening of the network signal over long cable lengths
the loss of wireless signal over excessive distance from the access point
A wireless LAN is being deployed inside the new one room office that is occupied by the park ranger. The office is located at the highest part of the national park. After network testing is complete, the technicians report that the wireless LAN signal is occasionally affected by some type of interference. What is a possible cause of the signal distortion?
the elevated location where the wireless LAN was installed
the microwave oven
the large number of trees that surround the office
the number of wireless devices that are used in the wireless LAN
What is the definition of bandwidth?
the amount of data that can flow from one place to another in a given amount of time
the speed at which bits travel on the network
the speed of bits across the media over a given period of time
the measure of usable data transferred over a given period of time
Which standards organization oversees development of wireless LAN standards?
IANA
IEEE
TIA
ISO
A network administrator is designing a new network infrastructure that includes both wired and wireless connectivity. Under which situation would a wireless connection be recommended?
The end-user device requires a dedicated connection because of performance requirements.
The end-user device area has a high concentration of RFI.
The end-user device needs mobility when connecting to the network.
The end-user device only has an Ethernet NIC.
Which three acronyms/initialisms represent standards organizations? (Choose three.)
IEEE
MAC
IETF
OSI
IANA
Which message delivery option is used when all devices need to receive the same message simultaneously?
multicast
unicast
duplex
broadcast
What type of communication will send a message to all devices on a local area network?
multicast
unicast
duplex
broadcast
What are two benefits of using a layered network model? (Choose two.)
It prevents technology in one layer from affecting other layers.
It ensures a device at one layer can function at the next higher layer.
It speeds up packet delivery.
It assists in protocol design.
It prevents designers from creating their own model.
What is the purpose of protocols in data communications?
specifying the device operating systems that will support the communication
specifying the bandwidth of the channel or medium for each type of communication
providing the rules required for a specific type of communication to occur
dictating the content of the message sent during communication
Which logical address is used for delivery of data to a remote network?
destination IP address
destination port number
source IP address
destination MAC address
A web client is sending a request for a webpage to a web server. From the perspective of the client, what is the correct order of the protocol stack that is used to prepare the request for transmission?
Ethernet, TCP, IP, HTTP
HTTP, IP, TCP, Ethernet
Ethernet, IP, TCP, HTTP
HTTP, TCP, IP, Ethernet
What is a function of OSPF hello packets?
to discover neighbors and build adjacencies between them
to ensure database synchronization between routers
to request specific link-state records from neighbor routers
to send specifically requested link-state records
What is a feature of the OSPF routing protocol?
The SPF algorithm chooses the best path based on 30-second updates.
It scales well in both small and large networks.
OSPF authentication is configured in the same way on IPv4 and IPv6 networks.
Routers can be grouped into autonomous systems to support a hierarchical system.
Which transport layer feature is used to establish a connection-oriented session?
TCP 3-way handshake
TCP port number
UDP sequence number
UDP ACK flag
How does a networked server manage requests from multiple clients for different services?
The server sends all requests through a default gateway.
Each request has a combination of source and destination port numbers, coming from a unique IP address.
Each request is tracked through the physical address of the client.
The server uses IP addresses to identify different services.
What happens if part of an FTP message is not delivered to the destination?
The part of the FTP message that was lost is re-sent.
The FTP source host sends a query to the destination host.
The entire FTP message is re-sent.
The message is lost because FTP does not use a reliable delivery method.
What type of applications are best suited for using UDP?
applications that are sensitive to packet loss
applications that need reliable delivery
applications that require retransmission of lost segments
applications that are sensitive to delay
Network congestion has resulted in the source learning of the loss of TCP segments that were sent to the destination. What is one way that the TCP protocol addresses this?
The destination decreases the window size.
The destination sends fewer acknowledgement messages in order to conserve bandwidth.
The source decreases the amount of data that it transmits before it receives an acknowledgement from the destination.
The source decreases the window size to decrease the rate of transmission from the destination.
Which two operations are provided by TCP but not by UDP? (Choose two.)
identifying individual conversations
acknowledging received data
retransmitting any unacknowledged data
identifying the applications
reconstructing data in the order received
What is the purpose of using a source port number in a TCP communication?
to assemble the segments that arrived out of order
to keep track of multiple conversations between devices
to inquire for a nonreceived segment
to notify the remote device that the conversation is over
Which two flags in the TCP header are used in a TCP three-way handshake to establish connectivity between two network devices? (Choose two.)
ACK
URG
SYN
RST
FIN
Which two services or protocols use the preferred UDP protocol for fast transmission and low overhead? (Choose two)
FTP
POP3
DNS
VoIP
HTTP
On a home network, which device is most likely to provide dynamic IPv4 addressing to clients on the home network?
a home router
an ISP DHCP server
a dedicated file server
a DNS server
What message type is used by an HTTP client to request data from a web server?
POST
GET
PUT
ACK
Why is DHCP for IPv4 preferred for use on large networks?
DHCP uses a reliable transport layer protocol.
It is a more efficient way to manage IPv4 addresses than static address assignment is.
It prevents sharing of files that are copyrighted.
Large networks send more requests for domain to IP address resolution than do smaller networks.
Hosts on large networks require more IPv4 addressing configuration settings than do hosts on small networks.
An author is uploading one chapter document from a personal computer to a file server of a book publisher. What role is the personal computer assuming in this network model?
slave
transient
server
master
client
A wireless host needs to request an IPv4 address. What protocol would be used to process the request?
HTTP
FTP
SNMP
DHCP
ICMP
When retrieving email messages, which protocol allows for easy, centralized storage and backup of emails that would be desirable for a small- to medium-sized business?
IMAP
HTTPS
POP
SMTP
Which protocol uses encryption?
HTTPS
DHCP
FTP
DNS
Which two tasks can be performed by a local DNS server? (Choose two.)
retrieving email messages
mapping name-to-IP addresses for internal hosts
forwarding name resolution requests between servers
allowing data transfer between two network devices
providing IP addresses to local hosts
What types of server software can a single server provide
File
Web
Application
What type of device is a switch
Intermediary Device
Host
Monitor
Multimedia Device
What is the most common Ethernet architecture today
500 base-T
1000 base-T
800 base-T
1000 base-l
Current latest wireless standard
802.11ac
802.11c
802.11b
802.11abc
_______ is also termed as a logical address.
MAC address
Port address
IP address
None of the above
Which Class of IP address is the following - 192.168.1.1 ?
Class A
Class B
Class C
Class D
Class E
What is the Internet?
It provides network access for mobile devices
It is a network based on Ethernet technology
It provides connections through interconnected global networks
It is a private network for an organization with LAN and WAN connections
ICMP stands for ?
Internal Concept Message Protocol
Internet Control Mapping Protocol
Internal Control Message Protocol
Internet Control Message Protocol
Which protocol does TFTP typically use for transport?
RSVP
TCP
UDP
DNS
Which two statements are correct about IPv4 and IPv6 addresses? (Choose two.)
IPv6 addresses are 64 bits in length
IPv4 addresses are 32 bits in length
IPv6 addresses are represented with hexadecimal numbers
IPv6 addresses are 128 bits in length
IPv6 addresses are 32 bits in length
How many binary bits exist within an IPv6 address?
64
48
256
128
32
Which IPv4 address format was created for ease of use by people and is expressed as 201.192.1.14?
ASCII
binary
hexadecimal
dotted decimal
How many bits are in an IPv4 address?
256
64
128
32
How many binary bits exist within an IPv4 address?
64
48
256
128
32
How many binary bits exist within an MAC address?
64
48
256
128
32
Which two characteristics describe Ethernet technology? (Choose two.)
It is supported by IEEE 802.5 standards.
It uses unique MAC addresses to ensure that data is sent to the appropriate destination.
It uses a ring topology.
It is supported by IEEE 802.3 standards.
It typically uses an average of 16 Mbps for data transfer rates
What statement describes a characteristic of MAC addresses?
They are added as part of a Layer 3 PDU.
They are only routable within the private network.
They must be globally unique.
They have a 32-bit binary value.
Which network device makes forwarding decisions based on the destination MAC address that is contained in the frame?
router
switch
hub
repeater
What will a host on an Ethernet network do if it receives a frame with a unicast destination MAC address that does not match its own MAC address?
It will discard the frame.
It will strip off the data-link frame to check the destination IP address.
It will remove the frame from the media.
It will forward the frame to the next host.
What method is used to manage contention-based access on a wireless network?
CSMA/CA
priority ordering
CSMA/CD
token passing
Which data link layer media access control method does Ethernet use with legacy Ethernet hubs?
determinism
token passing
CSMA/CD
turn taking
Which characteristic describes an IPv6 enhancement over IPv4?
IPv6 addresses are based on 128-bit flat addressing as opposed to IPv4 which is based on 32-bit hierarchical addressing.
The IPv6 header is simpler than the IPv4 header is, which improves packet handling.
Both IPv4 and IPv6 support authentication, but only IPv6 supports privacy capabilities.
The IPv6 address space is four times bigger than the IPv4 address space.
Which statement accurately describes a characteristic of IPv4?
An IPv4 header has fewer fields than an IPv6 header has.
IPv4 natively supports IPsec.
IPv4 has a 32-bit address space.
All IPv4 addresses are assignable to hosts.
What was the reason for the creation and implementation of IPv6?
to relieve IPv4 address depletion
to provide more address space in the Internet Names Registry
to allow NAT support for private addressing
to make reading a 32-bit address easier
Which information is used by routers to forward a data packet toward its destination?
destination data-link address
destination IP address
source IP address
source data-link address
Which field in an IPv4 packet header will typically stay the same during its transmission?
Packet Length
Time-to-Live
Destination Address
Flag
Which field in an IPv6 packet is used by the router to determine if a packet has expired and should be dropped?
No Route to Destination
Hop Limit
TTL
Address Unreachable
What are two features of the OSPF routing protocol? (Choose two.)
has an administrative distance of 100
automatically summarizes networks at the classful boundaries
used primarily as an EGP
calculates its metric using bandwidth
uses Dijkstra's algorithm to build the SPF tree
What is the first criterion used by OPSF routers to elect a DR?
highest router ID
highest priority
highest IP address
highest MAC address
Which protocol is used by IPv4 and IPv6 to provide error messaging?
ARP
DHCP
ICMP
NDP
Which protocol provides feedback from the destination host to the source host about errors in packet delivery?
ARP
DNS
ICMP
BOOTP
What message is sent by a host to check the uniqueness of an IPv6 address before using that address?
neighbor solicitation
echo request
router solicitation
ARP request
Which network design consideration would be more important to a large corporation than to a small business?
low port density switch
firewall
redundancy
Internet router
A newly hired network technician is given the task of ordering new hardware for a small business with a large growth forecast. Which primary factor should the technician be concerned with when choosing the new devices?
devices with support for modularity
redundant devices
devices that have support for network monitoring
devices with a fixed number and type of interfaces
What type of traffic would most likely have the highest priority through the network?
SNMP
FTP
voice
instant messaging
What mechanism can be implemented in a small network to help minimize network latency for real-time streaming applications?
AAA
PoE
ICMP
QoS
A small company has only one router as the exit point to its ISP. Which solution could be adopted to maintain connectivity if the router itself, or its connection to the ISP, fails?
Purchase a second least-cost link from another ISP to connect to this router.
Add more interfaces to the router that is connected to the internal network.
Have a second router that is connected to another ISP.
Activate another router interface that is connected to the ISP, so the traffic can flow through it.
What factor should be considered in the design of a small network when devices are being chosen?
traffic analysis
cost of devices
ISP
redundancy
What term is used to refer to the overhead processes that control the work done by a network device?
Management plane
Forwarding plane
Data plane
Control plane
Write the word of the gap: IPv6 is a coloned (a) number
Which option describes the way that metrics work with OSPF?
Calculation based on a route’s slowest link speed and the cumulative delay associated with each interface on the way to the destination subnet
The sum of manually configured interface costs between a router and the destination subnet
The sum of all interface cost settings for all links in a destination subnet divided by a reference bandwidth
The number of routers between a router and the destination subnet
This image is a part of an (a) Address?
Example: IPV4, IPV6, MAC, Physical
Among hub, bridge and switch who can store MAC address?
(a)
Which is the better wireless networking protocol?
IEEE 802.11
802.15. 1
AD HOC
IPV4
What is cost?
proportion of bandwidth
low internet
hardware repair
money
What two things are shared with the virtual router and physical routers?
IP
MAC
NIC
Gateway
Name
Which two databases are unique to each router in an OSPF environment?
LSDB
Adjacency database
Forwarding database
SPF database
Place the link-state routing steps in order:
A- Execute the SPF algorithm
B- Exchange Link-State advertisements
C- Establish neighbor adjacencies
D- Build the Link-State database
E- Choose the best route
C-B-D-A-E
A-B-D-C-E
B-C-A-D-E
A-C-B-D-E
Which link-state routing step involves sending hello packets out all OSPF enabled interfaces?
Establish Neighbor Adjacencies
Exchange Link-State Advertisements
Build the Link State Database
Execute the SPF Algorithm
You have a server named Host1 that runs Windows Server 2016.
You configure Host1 as a virtualization host and create 20 new virtual machines on Host1. You need to ensure that all of the virtual machines can connect to the Internet through Host1. Which three actions should you perform? Each correct answer presents part of the solution.
On a virtual machine, install the Remote Access server role.
From the properties of each virtual machine, enable virtual LAN identification.
From the properties of each virtual machine, connect to the virtual machine switch.
On Host1, configure the network address translation (NAT) network.
On Host1, create an internal virtual machine switch and specify an IP address for the switch.
Third Octet in the CLass C IP Address is Called _________?
Host ID
Net ID
Subnet
Gateway
Third and Fourth Octet in Class B IP Address is Called?
Net ID
LAN ID
Host ID
IP Class
195.121.20.11 is Class ______ IP Address?
Class A
Class B
Class C
Class D
What class of IP Address is this? 190.15.100.10?
Class A
Class B
Class C
Class D
Network device connected to ISP and Routes its connection through LAN and wireless access?
switch
Router
Cable
Laptop
