(Summary) NCTI IV Final Prep, NCTI IV ch 13
574 Questions and correct answers, 2024.
Active
A hub that repeats and regenerates signals is called which type of hub?
Network Interface Card (NIC)
Which device provides the connection point between a workstation or personal computer (PC) and the
network?
Which three of the following networking devices break up collisions? (Choose three.)
Bridge, Switch, Router
Bridge
Switch
Repeater
Which three devices forward broadcast traffic? (Choose three.)
Router
Which network device allows communication between separate IP networks?
Star
Hubs connect network hosts in which configuration?
Router
Which network device can isolate broadcast traffic to the local network segment?
switch
Which OSI/RM Data Link Layer 2 device creates multiple network segments, each offering the full
network bandwidth?
Bridge
Which network device allows us to connect dissimilar network topologies?
Network Interface Card (NIC)
Which network device requires a device driver in order to connect hosts to the network segment?
185m
Question Review
At what maximum distance would you have to add a repeater to a 10Base2 network segment to
prevent signal degradation?
,Layer 3, the Network Layer.
Which open systems interconnection (OSI) model layer do routers support?
By building physical address to port mappings and making forwarding decisions based on these
mappings.
Bridges and OSI/RM Layer 2 switches filter traffic in which way?
Decapsulate the packet.
What must the Network Layer do to a received frame first in order to determine the route over which
it will forward the datagram to the next network?
10.0.0.0
172.31.255.255
192.168.0.0
Which are considered private Internet protocol (IP) addresses? (Choose three.)
0.x.y.z
127.x.y.z
Which two of the following are considered reserved IP addresses? (Choose two.)
Multicast
A Class D address is also known as which type of address?
Loopback
What does the class network number 127.x.y.z designate?
1.hhh.hhh.hhh-126.hhh.hhh.hhh
Which is the valid Class A IP address range available to network hosts?
The network uses gateways, routers, or firewalls to act on the network host's behalf.
The Internet Assigned Numbers Authority (IANA) recommends organizations use private IP addresses
under which condition?
192.000.001.hhh-223.255.254.hhh
Which is the valid Class C IP address range?
151.129.89.76
Which is a valid Class B network address?
The host portion should not be all 1s.
The network portion bits should not be all 0s.
Which two statements are true concerning IP addressing? (Choose two.)
,254
A Class C address provides for a maximum of how many usable hosts?
24 network, 8 hosts
A Class C network address provides for how many network and host bits?
They gain more network design flexibility with a large address range.
They prevent Internet address clashes when obtaining only a small range of Internet Corporation for
Assigned Names and Numbers (ICANN) assigned addresses.
They conserve public IP addresses when uniqueness is not required.
In which three ways do organizations benefit from using private IP addresses? (Choose three.)
A global addressing structure
Packet fragmentation
Service type requests
Which three of the following are functions of the TCP/IP Internetwork Layer? (Choose three.)
Internet Control Message Protocol (ICMP).
Which TCP/IP Internetwork Layer provides troubleshooting utilities, such as ping and traceroute?
Application Layer.
Session Layer.
Presentation Layer.
The TCP/IP model Application Layer maps to which three Open Systems Interconnection reference
model (OSI/RM) layers? (Choose three.)
Physical Layer
Data Link Layer
The TCP/IP model Network Interface Layer maps to which Open Systems Interconnection reference
model (OSI/RM) layer(s)? (Choose all that apply.)
Internet Group Management Protocol (IGMP).
Internet protocol (IP).
Address resolution protocol (ARP).
Which three of the following are included in the TCP/IP Internetwork Layer? (Choose three.)
The Transport Layer passes data stream to the Internetwork Layer. which adds the source and
destination IP addresses and forwards the packets to the Network Interface Layer which builds frames,
and converts them to bits for transport across the physical network.
Which of the following best describes an email message’s communication flow through the TCP/IP
model layers?
User datagram protocol (UDP).
, Which TCP/IP Transport Layer protocol provides an end-to-end, transaction-oriented, best-effort,
connectionless service?
Checksum
Acknowledgements
Sequence number
Transmission control protocol (TCP) includes which three types of mechanisms to ensure reliable data
transmission? (Choose three.)
Application
Telnet is a protocol in which TCP/IP layer?
Network News Transfer Protocol (NNTP)
Which TCP/IP Application Layer protocol allows companies to publicly post information over the
Internet?
It transmits data in the form of bits across the physical medium.
The Open Systems Interconnection reference model (OSI/RM) Physical Layer serves which primary
purpose?
It defines the format in which Application Layer information is sent across the network.
Which is the primary purpose of the Open Systems Interconnection reference model (OSI/RM)
Presentation Layer?
It defines the format in which Application Layer information is sent across the network.
Which is the primary purpose of the Open Systems Interconnection reference model (OSI/RM)
Presentation Layer?
It uses Layer 3 (Network Layer) addresses to create multiple routed networks.
The Open Systems Interconnection Reference Model (OSI/RM) Network Layer serves which primary
purpose?
It builds a flat network model with unroutable physical addresses.
The Open Systems Interconnection Reference Model (OSI/RM) Data Link Layer serves which primary
purpose?
It provides the user interface to the system.
The Open Systems Interconnection Reference Model (OSI/RM) Application Layer serves which primary
purpose?
It establishes, manages, and terminates dialogs between Presentation Layer entities.
Which is the primary purpose of the Open Systems Interconnection reference model (OSI/RM) Session
Layer?
574 Questions and correct answers, 2024.
Active
A hub that repeats and regenerates signals is called which type of hub?
Network Interface Card (NIC)
Which device provides the connection point between a workstation or personal computer (PC) and the
network?
Which three of the following networking devices break up collisions? (Choose three.)
Bridge, Switch, Router
Bridge
Switch
Repeater
Which three devices forward broadcast traffic? (Choose three.)
Router
Which network device allows communication between separate IP networks?
Star
Hubs connect network hosts in which configuration?
Router
Which network device can isolate broadcast traffic to the local network segment?
switch
Which OSI/RM Data Link Layer 2 device creates multiple network segments, each offering the full
network bandwidth?
Bridge
Which network device allows us to connect dissimilar network topologies?
Network Interface Card (NIC)
Which network device requires a device driver in order to connect hosts to the network segment?
185m
Question Review
At what maximum distance would you have to add a repeater to a 10Base2 network segment to
prevent signal degradation?
,Layer 3, the Network Layer.
Which open systems interconnection (OSI) model layer do routers support?
By building physical address to port mappings and making forwarding decisions based on these
mappings.
Bridges and OSI/RM Layer 2 switches filter traffic in which way?
Decapsulate the packet.
What must the Network Layer do to a received frame first in order to determine the route over which
it will forward the datagram to the next network?
10.0.0.0
172.31.255.255
192.168.0.0
Which are considered private Internet protocol (IP) addresses? (Choose three.)
0.x.y.z
127.x.y.z
Which two of the following are considered reserved IP addresses? (Choose two.)
Multicast
A Class D address is also known as which type of address?
Loopback
What does the class network number 127.x.y.z designate?
1.hhh.hhh.hhh-126.hhh.hhh.hhh
Which is the valid Class A IP address range available to network hosts?
The network uses gateways, routers, or firewalls to act on the network host's behalf.
The Internet Assigned Numbers Authority (IANA) recommends organizations use private IP addresses
under which condition?
192.000.001.hhh-223.255.254.hhh
Which is the valid Class C IP address range?
151.129.89.76
Which is a valid Class B network address?
The host portion should not be all 1s.
The network portion bits should not be all 0s.
Which two statements are true concerning IP addressing? (Choose two.)
,254
A Class C address provides for a maximum of how many usable hosts?
24 network, 8 hosts
A Class C network address provides for how many network and host bits?
They gain more network design flexibility with a large address range.
They prevent Internet address clashes when obtaining only a small range of Internet Corporation for
Assigned Names and Numbers (ICANN) assigned addresses.
They conserve public IP addresses when uniqueness is not required.
In which three ways do organizations benefit from using private IP addresses? (Choose three.)
A global addressing structure
Packet fragmentation
Service type requests
Which three of the following are functions of the TCP/IP Internetwork Layer? (Choose three.)
Internet Control Message Protocol (ICMP).
Which TCP/IP Internetwork Layer provides troubleshooting utilities, such as ping and traceroute?
Application Layer.
Session Layer.
Presentation Layer.
The TCP/IP model Application Layer maps to which three Open Systems Interconnection reference
model (OSI/RM) layers? (Choose three.)
Physical Layer
Data Link Layer
The TCP/IP model Network Interface Layer maps to which Open Systems Interconnection reference
model (OSI/RM) layer(s)? (Choose all that apply.)
Internet Group Management Protocol (IGMP).
Internet protocol (IP).
Address resolution protocol (ARP).
Which three of the following are included in the TCP/IP Internetwork Layer? (Choose three.)
The Transport Layer passes data stream to the Internetwork Layer. which adds the source and
destination IP addresses and forwards the packets to the Network Interface Layer which builds frames,
and converts them to bits for transport across the physical network.
Which of the following best describes an email message’s communication flow through the TCP/IP
model layers?
User datagram protocol (UDP).
, Which TCP/IP Transport Layer protocol provides an end-to-end, transaction-oriented, best-effort,
connectionless service?
Checksum
Acknowledgements
Sequence number
Transmission control protocol (TCP) includes which three types of mechanisms to ensure reliable data
transmission? (Choose three.)
Application
Telnet is a protocol in which TCP/IP layer?
Network News Transfer Protocol (NNTP)
Which TCP/IP Application Layer protocol allows companies to publicly post information over the
Internet?
It transmits data in the form of bits across the physical medium.
The Open Systems Interconnection reference model (OSI/RM) Physical Layer serves which primary
purpose?
It defines the format in which Application Layer information is sent across the network.
Which is the primary purpose of the Open Systems Interconnection reference model (OSI/RM)
Presentation Layer?
It defines the format in which Application Layer information is sent across the network.
Which is the primary purpose of the Open Systems Interconnection reference model (OSI/RM)
Presentation Layer?
It uses Layer 3 (Network Layer) addresses to create multiple routed networks.
The Open Systems Interconnection Reference Model (OSI/RM) Network Layer serves which primary
purpose?
It builds a flat network model with unroutable physical addresses.
The Open Systems Interconnection Reference Model (OSI/RM) Data Link Layer serves which primary
purpose?
It provides the user interface to the system.
The Open Systems Interconnection Reference Model (OSI/RM) Application Layer serves which primary
purpose?
It establishes, manages, and terminates dialogs between Presentation Layer entities.
Which is the primary purpose of the Open Systems Interconnection reference model (OSI/RM) Session
Layer?
