Worksheetsquiz1 it exam
Total questions: 60
Worksheet time: 32mins
What is a characteristic of a SOHO network?
It consists of multiple LANs with backbone infrastructure connections.
It is a small network that connects a few computers to each other and to the internet.
It is a collection of interconnected private and public networks.
It is a large network, such as those used by corporations and schools, with hundreds or thousands of interconnected hosts.
Which action is performed by a client when establishing communication with a server via the use of UDP at the transport layer?
The client sends a synchronization segment to begin the session.
The client randomly selects a source port number.
The client sets the window size for the session.
The client sends an ISN to the server to start the 3-way handshake.
A destination PC receives an email message with the sequence numbers on packets out of order. Which layer of the TCP/IP model is responsible for reassembling the packets of the message in the correct order?
network access
internet
application
transport
What type of applications are best suited for using UDP?
applications that are sensitive to delay
applications that need reliable delivery
applications that require retransmission of lost segments
applications that are sensitive to packet loss
What is the IPv6 prefix that is used for link-local addresses?
FF01::/8
FC00::/7
FE80::/10
2001::/3
Which network technology allows devices to communicate using both IPv4 and IPv6 addressing at the same time?
tunneling
NAT64
dual stack
SLAAC
Typically, which network device would be used to perform NAT for a corporate environment?
host device
switch
server
router
DHCP server
Which characteristic describes the default gateway of a host computer?
the logical address of the router interface on the same network as the host computer
the logical address assigned to the switch interface connected to the router
the physical address of the router interface on the same network as the host computer
the physical address of the switch interface connected to the host computer
What addressing information is recorded by a switch to build its MAC address table?
the source Layer 3 address of outgoing packets
the destination Layer 2 address of outgoing frames
the destination Layer 3 address of incoming packets
the source Layer 2 address of incoming frames
What is the default subnet mask for an IP address of 198.133.219.4?
255.255.255.0
255.255.0.0
255.0.0.0
255.255.255.255
When a host sends a packet, how does it determine if the destination of the packet is on the same local network or on a remote network?
It compares the source and destination MAC addresses.
It queries the DNS server with the destination IP address.
It checks to see if the default gateway is configured.
It uses the subnet mask to compare the source and destination IP address.
Which two parts are components of an IPv4 address? (Choose two.)
host portion
subnet portion
physical portion
network portion
A router is receiving a stream of incoming packets and does not contain a route to the remote destination network. What configuration can a network administrator issue in order to successfully forward the incoming packets?
Change the IP address of the ingress interface to match the targeted destination network.
Enable a dynamic routing protocol.
Add a default route.
Share the routing table with the hosts on the local network.
A router receives an incoming packet and determines that the packet should be forwarded to a remote destination host. What will the router do to forward the packet?
It encapsulates the frame with the destination IP address by using the specific IP address configured on the interface of the next hop router.
It encapsulates the frame with a source IP address by using the specific IP address of the destination host.
It encapsulates the frame with a destination MAC address by using the specific MAC address of the destination host device.
It encapsulates the frame with the destination MAC address by using the MAC address of the interface of the next-hop router.
A computer can access devices on the same network but cannot access devices on other networks. What is the probable cause of this problem?
The computer has an invalid default gateway address.
The cable is not connected properly to the NIC.
The computer has an incorrect subnet mask.
The computer has an invalid IP address.
Refer to the exhibit. Consider the IP address configuration shown from PC1. What is a description of the default gateway address?
It is the IP address of Switch1 that connects PC1 to other devices on the same LAN.
It is the IP address of the Router1 interface that connects the PC1 LAN to Router1.
It is the IP address of the Router1 interface that connects the company to the Internet.
It is the IP address of the ISP network device located in the cloud.
Which two functions are primary functions of a router? (Choose two.)
path selection
flow control
micro segmentation
domain name resolution
packet forwarding
A small publishing company has a network design such that when a broadcast is sent on the LAN, 200 devices receive the transmitted broadcast. How can the network administrator reduce the number of devices that receive broadcast traffic?
Segment the LAN into smaller LANs and route between them
Add more switches so that fewer devices are on a particular switch.
Replace at least half of the switches with hubs to reduce the size of the broadcast domain.
Replace the switches with switches that have more ports per switch. This will allow more devices on a particular switch.
Which logical address is used for delivery of data to a remote network?
source MAC address
destination port number
source IP address
destination MAC address
destination IP address
What will a Cisco LAN switch do if it receives an incoming frame and the destination MAC address is not listed in the MAC address table?
Drop the frame.
Use ARP to resolve the port that is related to the frame.
Forward the frame out all ports except the port where the frame is received.
Send the frame to the default gateway address.
Which IP address is a unicast address if a default subnet mask is used?
195.124.45.255
192.16.43.67
226.34.15.78
201.34.45.0
The Institute of Electrical and Electronics Engineers is responsible for standards in which two areas? (Choose two.)
Ethernet media access control
wireless LANs
IP address allocation and management
the OSI reference model
Which type of network model describes the functions that must be completed at a particular layer, but does not specify exactly how each protocol should work?
hierarchical design model
reference model
protocol model
TCP/IP model
What type of message is sent to a specific group of hosts?
broadcast
unicast
multicast
dynamic
What process is used to place one message inside another message for transfer from the source to the destination?
flow control
encapsulation
access control
decoding
Which statement is true about MAC addresses?
The first three bytes are used by the vendor assigned OUI.
MAC addresses are implemented by software
The ISO is responsible for MAC addresses regulations.
A NIC only needs a MAC address if connected to a WAN.
What action does the ARP process take when a host needs to build a frame, but the ARP cache does not contain an address mapping?
The ARP process sends out an ARP request to the IPv4 broadcast address to discover the MAC address of the destination device.
The ARP process sends out an ARP request to the IPv4 broadcast address to discover the IPv4 address of the destination device.
The ARP process sends out an ARP request to the Ethernet broadcast address to discover the IPv4 address of the destination device.
The ARP process sends out an ARP request to the Ethernet broadcast address to discover the MAC address of the destination device.
Which portion of the network layer address does a router use to forward packets?
host portion
network portion
broadcast address
gateway address
Refer to the exhibit. The IP address of which device interface should be used as the default gateway setting of host H1?
R1: G0/0
R2: S0/0/1
R1: S0/0/0
R2: S0/0/0
Which layer of the OSI model defines services to segment and reassemble data for individual communications between end devices?
application
session
network
transport
presentation
Which three layers of the OSI model are comparable in function to the application layer of the TCP/IP model? (Choose three.)
application
network
presentation
transport
session
Which network does a host with IP address 172.32.65.13 reside on if it is using a default subnet mask?
172.32.65.0
172.32.32.0
172.32.65.32
172.32.0.0
When IPv4 is configured for a computer on a network, what does the subnet mask identify?
the dynamic subnetwork configuration
the device that the computer uses to access another network
the part of the IP address that identifies the network
the pool of addresses assigned within the network
A router receives a packet from the Gigabit 0/0 interface and determines that the packet needs to be forwarded out the Gigabit 0/1 interface. What will the router do next?
route the packet out the Gigabit 0/1 interface
look into the routing table to determine if the destination network is in the routing table
create a new Layer 2 Ethernet frame to be sent to the destination
look into the ARP cache to determine the destination IP address
Refer to the exhibit. How is a frame sent from PCA forwarded to PCC if the MAC address table on switch SW1 is empty?
SW1 floods the frame on all ports on SW1, excluding the port through which the frame entered the switch.
SW1 floods the frame on all ports on the switch, excluding the interconnected port to switch SW2 and the port through which the frame entered the switch.
SW1 forwards the frame directly to SW2. SW2 floods the frame to all ports connected to SW2, excluding the port through which the frame entered the switch.
SW1 drops the frame because it does not know the 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 an ARP request for the MAC address of the destination device.
It will send the frame and use the device MAC address as the destination.
It will send the frame with a broadcast MAC address.
It will send an ARP request for the MAC address of the default gateway.
It will send an ARP request to the DNS server for the destination MAC address.
Which network device can serve as a boundary to divide a Layer 2 broadcast domain?
router
access point
Ethernet bridge
Ethernet hub
Which three fields are found in an 802.3 Ethernet frame? (Choose three.)
source physical address
media type identifier
frame check sequence
source logical address
destination physical address
Which two layers of the OSI model specify protocols that are associated with Ethernet standards? (Choose two.)
physical layer
session layer
data link layer
transport layer
network layer
Which statement describes a MAC address?
It is 128-bits in length.
It identifies the source and destination addresses of hosts on the Internet.
It contains two portions, the network portion and the host portion.
It is a physical address assigned to an Ethernet NIC by the manufacturer
A network design engineer has been asked to design the IP addressing scheme for a customer network. The network will use IP addresses from the 192.168.30.0/24 network. The engineer allocates 254 IP addresses for the hosts on the network but excludes 192.168.30.0/24 and 192.168.30.255/24 IP addresses. Why must the engineer exclude these two IP addresses?
192.168.30.0/24 and 192.168.30.255/24 IP addresses are reserved for the email and DNS servers.
192.168.30.0/24 is the network IP address and 192.168.30.255/24 is the IP broadcast address.
192.168.30.0/24 and 192.168.30.255/24 IP addresses are reserved for outside Internet connectivity.
192.168.30.0/24 is the IP address reserved for the default gateway, and 192.168.30.255/24 is the IP address reserved for the DHCP server.
What are three private IPv4 address? (Choose three.)
10.1.1.1
172.32.5.2
192.168.5.5
224.6.6.6
172.16.4.4
Which criterion can be used to select the appropriate type of network media for a network?
the types of data that need to be prioritized
the number of intermediary devices that are installed in the network
the cost of the end devices that are used in the network
the environment where the selected medium is to be installed
Which type of network component can be used to share an attached printer to the network?
peripheral
access point
personal computer
network media
What terms represent the maximum and actual speed that can be utilized by a device to transfer data?
throughput; bandwidth
bandwidth; throughput
throughput; goodput
bandwidth; goodput
Which type of network cable is used to connect the components that make up satellite communication systems?
fiber-optic
coaxial
unshielded twisted-pair
shielded twisted-pair
Which type of network cable is commonly used to connect office computers to the local network?
coaxial cable
glass fiber-optic cable
twisted-pair cable
plastic fiber-optic cable
What are two advantages of using fiber-optic cabling to interconnect devices? (Choose two.)
Fiber-optic cable is immune from EMI and RFI.
Fiber-optic cables are commonly found in both homes and small businesses.
Fiber-optic cables can extend several miles.
Fiber-optic cables are easy to install..
Fiber-optic cables use extra shielding to protect copper wires.
If you were drawing a physical topology of your school network, what type of information would you include?
how devices are connected
the location of devices in the building
the path that data takes to reach destinations
the IP addresses of all devices on the network
Which term is used to describe a network device that relies on another device to obtain information?
console
client
web server
server
A traveling sales representative uses a cell phone to interact with the home office and customers, track samples, make sales calls, log mileage, and upload/download data while at a hotel. Which internet connectivity method would be a preferred method to use on the mobile device due to the low cost?
cellular
Wi-Fi
DSL
Cable
Which IP configuration parameter provides the IP address of a network device that a computer would use to access the Internet?
host IP address
subnet mask
default gateway
DNS server
Which network device is used to translate a domain name to the associated IP address?
router
DHCP server
DNS server
default gateway
A group of newly hired entry-level network engineers are talking about the network cabling they are going to have to install as a team. What is a characteristic of Ethernet straight-through UTP cable?
It can only use the T568A standard at both ends of the cable.
It can be used to connect two network hosts.
It is susceptible to interferences from EMI and RFI.
It is Cisco proprietary.
What is a purpose of an IP address?
It identifies the physical location of a data center.
It identifies a location in memory from which a program runs.
It identifies a return address for replying to email messages.
It identifies the source and destination of data packets.
Which type of network cable is commonly used in backbone networks and telephone companies?
fiber-optic cable
coaxial cable
twisted-pair cable
shielded twisted-pair cable
Which type of cable connection would be used in Packet Tracer to connect a Fast Ethernet port on a PC to a switch port?
console
straight-through
crossover
fiber
What is a role of an intermediary device on a network?
forms the interface between the human network and the underlying communication network
determines the path and directs data along the way to its final destination
runs applications that support collaboration for business
functions as the primary source of information for end devices
What type of network is defined by two computers that can both send and receive requests for resources?
enterprise
client/server
peer-to-peer
campus
What is the delay in the amount of time for data to travel between two points on a network?
throughput
latency
goodput
bandwidth
