NRS-1 Practice Test Exam UPDATED
QUESTIONS AND CORRECT ANSWERS
1.1 Which of the following is the physical infrastructure that
provides interconnections between ISPs?
a. A demarcation point
b. An Internet exchange point
c. A central office
d. A point of presence - CORRECT ANSWER b. An Internet exchange point
1.2 Which of the following provides physical separation
between service provider and customer responsibilities?
a. A provider edge router
b. An Internet exchange point
c. A demarcation point
d. A point of presence - CORRECT ANSWER c. A demarcation point
1.3 Which TCP/IP layer is responsible for path determination
and end-to-end forwarding of datagrams?
a. The application services layer
b. The transport layer
c. The Internet protocol layer
d. The network interface layer - CORRECT ANSWER c. The Internet protocol layer
1.4 What information is part of the encapsulation done at the
network interface layer?
a. Source and destination MAC addresses
b. Source and destination IP addresses
c. Source and destination port numbers
,d. Source and destination email addresses - CORRECT ANSWER a. Source and
destination MAC addresses
2.1 Which of the following shows a typical data packet flow
when egressing an Nokia 7750 SR?
a. SF/CPM -> MDA -> IOM -> SFP
b. SF/CPM -> SFP -> IOM -> MDA
c. SF/CPM -> IOM -> MDA -> SFP
d. MDA -> IOM -> SF/CPM -> SFP - CORRECT ANSWER c. SF/CPM -> IOM ->
MDA -> SFP
2.2 Which of the following is not a recommended usage
of the compact flashes on an Nokia 7750 SR?
a. Using CF 1 to store debug logs.
b. Using CF 2 to store debug logs.
c. Using CF 3 to store accounting logs.
d. Using CF 3 to store system files. - CORRECT ANSWER c. Using CF 3 to store
accounting logs.
2.3 Which of the following displays a hierarchial CLI command
structure at the current context level?
a. show
b. info
c. tree
d. help - CORRECT ANSWER c. tree
2.4 Which of the following is NOT a valid log destination in
an Nokia 7750 SR?
a. Main
b. Session
, c. Syslog
d. Console - CORRECT ANSWER a. Main
2.5 Which one of the following log-IDs is typically reserved
for Network Management on an Nokia 7750 SR
a. 0
b. 98
c. 99
d. 100 - CORRECT ANSWER b. 98
3.1 Which of the following is NOT a type of Layer 2 network?
a. Point-to-point network
b. Circuit-based network
c. Virtual private routed network
d. Shared network - CORRECT ANSWER c. Virtual private routed network
3.2 Which of the following statements about SONET/SDH is
FALSE?
a. SONET/SDH is a Layer-1 technology.
b. SDH is used primarily in North America.
c. The basic SONET frame is the STS-1.
d. An STS-1 frame is exactly one third of an STM-1 frame. - CORRECT ANSWER b.
SDH is used primarily in North America.
3.3 Which Ethernet frame field is found in the Ethernet
II frame header but NOT in the Ethernet 802.3 frame
header?
a. Preamble
b. Start Frame Delimiter
QUESTIONS AND CORRECT ANSWERS
1.1 Which of the following is the physical infrastructure that
provides interconnections between ISPs?
a. A demarcation point
b. An Internet exchange point
c. A central office
d. A point of presence - CORRECT ANSWER b. An Internet exchange point
1.2 Which of the following provides physical separation
between service provider and customer responsibilities?
a. A provider edge router
b. An Internet exchange point
c. A demarcation point
d. A point of presence - CORRECT ANSWER c. A demarcation point
1.3 Which TCP/IP layer is responsible for path determination
and end-to-end forwarding of datagrams?
a. The application services layer
b. The transport layer
c. The Internet protocol layer
d. The network interface layer - CORRECT ANSWER c. The Internet protocol layer
1.4 What information is part of the encapsulation done at the
network interface layer?
a. Source and destination MAC addresses
b. Source and destination IP addresses
c. Source and destination port numbers
,d. Source and destination email addresses - CORRECT ANSWER a. Source and
destination MAC addresses
2.1 Which of the following shows a typical data packet flow
when egressing an Nokia 7750 SR?
a. SF/CPM -> MDA -> IOM -> SFP
b. SF/CPM -> SFP -> IOM -> MDA
c. SF/CPM -> IOM -> MDA -> SFP
d. MDA -> IOM -> SF/CPM -> SFP - CORRECT ANSWER c. SF/CPM -> IOM ->
MDA -> SFP
2.2 Which of the following is not a recommended usage
of the compact flashes on an Nokia 7750 SR?
a. Using CF 1 to store debug logs.
b. Using CF 2 to store debug logs.
c. Using CF 3 to store accounting logs.
d. Using CF 3 to store system files. - CORRECT ANSWER c. Using CF 3 to store
accounting logs.
2.3 Which of the following displays a hierarchial CLI command
structure at the current context level?
a. show
b. info
c. tree
d. help - CORRECT ANSWER c. tree
2.4 Which of the following is NOT a valid log destination in
an Nokia 7750 SR?
a. Main
b. Session
, c. Syslog
d. Console - CORRECT ANSWER a. Main
2.5 Which one of the following log-IDs is typically reserved
for Network Management on an Nokia 7750 SR
a. 0
b. 98
c. 99
d. 100 - CORRECT ANSWER b. 98
3.1 Which of the following is NOT a type of Layer 2 network?
a. Point-to-point network
b. Circuit-based network
c. Virtual private routed network
d. Shared network - CORRECT ANSWER c. Virtual private routed network
3.2 Which of the following statements about SONET/SDH is
FALSE?
a. SONET/SDH is a Layer-1 technology.
b. SDH is used primarily in North America.
c. The basic SONET frame is the STS-1.
d. An STS-1 frame is exactly one third of an STM-1 frame. - CORRECT ANSWER b.
SDH is used primarily in North America.
3.3 Which Ethernet frame field is found in the Ethernet
II frame header but NOT in the Ethernet 802.3 frame
header?
a. Preamble
b. Start Frame Delimiter
