Nokia NRS 1 Exam UPDATED
QUESTIONS AND CORRECT ANSWERS
Which of the following best describes a repeater?
A. A passive device simply used to connect two or more cables. Does not generate or amplify
any signals.
B. A device that receives and retransmits a signal out its ports, but does not do any Layer 2
analysis of the data.
C. A device that receives a signal and based on the Layer 2 destination address, makes a
decision on which ports the signal should be retransmitted.
D. A device that receives a signal and based on the Layer 3 destination address, makes a
decision on which ports the signal should be retransmitted. - CORRECT ANSWER A.
A passive device simply used to connect two or more cables. Does not generate or amplify
any signals.
How do protocols such as ATM and Frame-Relay support differentiating multiple customers
or traffic types on the same physical wire?
A. ATM and Frame-Relay are circuit switched protocols and use Virtual Circuits to create
logical separation of traffic.
B. ATM and Frame-Relay are point-to-point protocols and do not support different customers
or traffic type on the same physical wire.
C. ATM and Frame-Relay are circuit switched protocols and use VLAN's to create logical
separation of traffic.
D. ATM and Frame-Relay are circuit switched protocols and use IP Header information to
create logical separation of traffic. - CORRECT ANSWER A. ATM and Frame-Relay
are circuit switched protocols and use Virtual Circuits to create logical separation of traffic.
Which of the following is a feature of Layer 3?
A. Provides an universal addressing scheme
B. Ensures data is delivered across the Layer 2 network.
C. Provides reliable data transfers.
D. Provides a physical interface to the network. - CORRECT ANSWER A. Provides an
universal addressing scheme
,The 201.148.26.0/24 network is subnetted using a /26 mask. How many subnets and host
addresses will you obtain with this mask?
A. 4 subnets, 64 hosts
B. 64 subnets, 4 hosts
C. 4 subnets, 62 hosts
D. 64 subnets, 2 hosts
E. 6 subnets, 30 hosts - CORRECT ANSWER C. 4 subnets, 62 hosts
What kind of information can a Dynamic Host Configuration Protocol (DHCP) client
receive?
A. Details of the configuration settings of each router on the network.
B. A list of other DHCP clients.
C. IP addresses and their lease times.
D. Server time information - CORRECT ANSWER C. IP addresses and their lease
times.
Choose two true statements that characterize Link State Routing
A. Routers send a copy of their routing table to their neighbors periodically.
B. Routers flood link information throughout the entire area.
C. Network converges quickly (within several seconds) after a topology change.
D. Routers do not have precise knowledge of the entire network topology. - CORRECT
ANSWER B. Routers flood link information throughout the entire area.
C. Network converges quickly (within several seconds) after a topology change.
Which statement accurately explains the purpose of the TCP protocol and what it provides?
A. The primary purpose of TCP is to provide reliable communications between application
services.
B. The primary purpose of TCP is to provide unreliable communications between application
services
C. The primary purpose of TCP is to provide IP routing between application services.
,D. The primary purpose of TCP is to define the correct format for the application layer such
as JPEG or HTML. - CORRECT ANSWER A. The primary purpose of TCP is to
provide reliable communications between application services
Which of the following is the best description of well known ports?
A. Well known ports apply to routers only and are used for communication and control
traffic. Well known port numbers are assigned by IANA and can have any value.
B. Well known ports are used by TCP and UDP. Well known port numbers range from 1024
to 65535 and are assigned by IANA.
C. Well known port numbers are used by both TCP and UDP. Well known port numbers range
from 1 to 1023 and are assigned by IANA.
D. Well known ports numbers are used by TCP only. Well known port numbers are assigned
by IANA and can have any value. - CORRECT ANSWER C. Well known port
numbers are used by both TCP and UDP. Well known port numbers range from 1 to 1023 and
are assigned by IANA.
Kahn solved the problem of interconnecting different networks using different protocols by
pioneering a new protocol called TCP that was capable of:
A. Secure transmission of information.
B. Enforcing a constant packet size to avoid discards.
C. Allowing remote logins.
D. Providing host to host connectivity with global addressing. - CORRECT
ANSWER D. Providing host to host connectivity with global addressing.
Which organization eventually became the standards body for IP and related protocols?
A. IEEE
B. IETF
C. NSFNET
D. ITU-T
E. APNIC - CORRECT ANSWER B. IETF
What is the name for an organization that provides Internet services to its customers?
, A. A large corporation.
B. An ISP.
C. A home based business.
D. A content provider. - CORRECT ANSWER B. An ISP.
The IANA is responsible for:
A. Intra-city ISP traffic
B. Allocation of the global IP address space
C. Allocating IP addresses for residential customer traffic
D. Allocating North American IP addresses - CORRECT ANSWER B. Allocation of
the global IP address space
Which of the following is an important advantage of protocol layering? (Choose two)
A. Controls distribution of IP addresses.
B. Simplifies protocol functionality.
C. Isolates changes in lower layers from upper layers.
D. Increases protocol operational efficiencies.
E. Layering adds to the fragmentation of the data - CORRECT ANSWER C. Isolates
changes in lower layers from upper layers.
D. Increases protocol operational efficiencies.
To transmit its segments of data across the network TCP uses the services of which layer?
A. Application Layer.
B. Transport Layer.
C. IP Layer.
D. Data Link Layer - CORRECT ANSWER C. IP Layer.
Which of the following are protocols belonging to the OSI suite of protocols? (Choose two)
A. OSPF
QUESTIONS AND CORRECT ANSWERS
Which of the following best describes a repeater?
A. A passive device simply used to connect two or more cables. Does not generate or amplify
any signals.
B. A device that receives and retransmits a signal out its ports, but does not do any Layer 2
analysis of the data.
C. A device that receives a signal and based on the Layer 2 destination address, makes a
decision on which ports the signal should be retransmitted.
D. A device that receives a signal and based on the Layer 3 destination address, makes a
decision on which ports the signal should be retransmitted. - CORRECT ANSWER A.
A passive device simply used to connect two or more cables. Does not generate or amplify
any signals.
How do protocols such as ATM and Frame-Relay support differentiating multiple customers
or traffic types on the same physical wire?
A. ATM and Frame-Relay are circuit switched protocols and use Virtual Circuits to create
logical separation of traffic.
B. ATM and Frame-Relay are point-to-point protocols and do not support different customers
or traffic type on the same physical wire.
C. ATM and Frame-Relay are circuit switched protocols and use VLAN's to create logical
separation of traffic.
D. ATM and Frame-Relay are circuit switched protocols and use IP Header information to
create logical separation of traffic. - CORRECT ANSWER A. ATM and Frame-Relay
are circuit switched protocols and use Virtual Circuits to create logical separation of traffic.
Which of the following is a feature of Layer 3?
A. Provides an universal addressing scheme
B. Ensures data is delivered across the Layer 2 network.
C. Provides reliable data transfers.
D. Provides a physical interface to the network. - CORRECT ANSWER A. Provides an
universal addressing scheme
,The 201.148.26.0/24 network is subnetted using a /26 mask. How many subnets and host
addresses will you obtain with this mask?
A. 4 subnets, 64 hosts
B. 64 subnets, 4 hosts
C. 4 subnets, 62 hosts
D. 64 subnets, 2 hosts
E. 6 subnets, 30 hosts - CORRECT ANSWER C. 4 subnets, 62 hosts
What kind of information can a Dynamic Host Configuration Protocol (DHCP) client
receive?
A. Details of the configuration settings of each router on the network.
B. A list of other DHCP clients.
C. IP addresses and their lease times.
D. Server time information - CORRECT ANSWER C. IP addresses and their lease
times.
Choose two true statements that characterize Link State Routing
A. Routers send a copy of their routing table to their neighbors periodically.
B. Routers flood link information throughout the entire area.
C. Network converges quickly (within several seconds) after a topology change.
D. Routers do not have precise knowledge of the entire network topology. - CORRECT
ANSWER B. Routers flood link information throughout the entire area.
C. Network converges quickly (within several seconds) after a topology change.
Which statement accurately explains the purpose of the TCP protocol and what it provides?
A. The primary purpose of TCP is to provide reliable communications between application
services.
B. The primary purpose of TCP is to provide unreliable communications between application
services
C. The primary purpose of TCP is to provide IP routing between application services.
,D. The primary purpose of TCP is to define the correct format for the application layer such
as JPEG or HTML. - CORRECT ANSWER A. The primary purpose of TCP is to
provide reliable communications between application services
Which of the following is the best description of well known ports?
A. Well known ports apply to routers only and are used for communication and control
traffic. Well known port numbers are assigned by IANA and can have any value.
B. Well known ports are used by TCP and UDP. Well known port numbers range from 1024
to 65535 and are assigned by IANA.
C. Well known port numbers are used by both TCP and UDP. Well known port numbers range
from 1 to 1023 and are assigned by IANA.
D. Well known ports numbers are used by TCP only. Well known port numbers are assigned
by IANA and can have any value. - CORRECT ANSWER C. Well known port
numbers are used by both TCP and UDP. Well known port numbers range from 1 to 1023 and
are assigned by IANA.
Kahn solved the problem of interconnecting different networks using different protocols by
pioneering a new protocol called TCP that was capable of:
A. Secure transmission of information.
B. Enforcing a constant packet size to avoid discards.
C. Allowing remote logins.
D. Providing host to host connectivity with global addressing. - CORRECT
ANSWER D. Providing host to host connectivity with global addressing.
Which organization eventually became the standards body for IP and related protocols?
A. IEEE
B. IETF
C. NSFNET
D. ITU-T
E. APNIC - CORRECT ANSWER B. IETF
What is the name for an organization that provides Internet services to its customers?
, A. A large corporation.
B. An ISP.
C. A home based business.
D. A content provider. - CORRECT ANSWER B. An ISP.
The IANA is responsible for:
A. Intra-city ISP traffic
B. Allocation of the global IP address space
C. Allocating IP addresses for residential customer traffic
D. Allocating North American IP addresses - CORRECT ANSWER B. Allocation of
the global IP address space
Which of the following is an important advantage of protocol layering? (Choose two)
A. Controls distribution of IP addresses.
B. Simplifies protocol functionality.
C. Isolates changes in lower layers from upper layers.
D. Increases protocol operational efficiencies.
E. Layering adds to the fragmentation of the data - CORRECT ANSWER C. Isolates
changes in lower layers from upper layers.
D. Increases protocol operational efficiencies.
To transmit its segments of data across the network TCP uses the services of which layer?
A. Application Layer.
B. Transport Layer.
C. IP Layer.
D. Data Link Layer - CORRECT ANSWER C. IP Layer.
Which of the following are protocols belonging to the OSI suite of protocols? (Choose two)
A. OSPF
