NRS-1 PRACTICE TEST
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,Question 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
Question 2
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
Question 3
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
Question 4
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
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, Question 5
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
Question 6
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.
Question 7
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
Question 8
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
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60+ (Latest 2025-2026 Edition) 100%
Verified Q&A + Answer Key Solutions
100% Guarantee Pass
✓ This Exam contains: NRS-1 Practice Test
✓ 100% Accurate Questions and Answers
✓ 100% Guarantee Pass - Verified by Experts
✓ Each Question Includes The Correct Answer
✓ Expert-Verified
Trusted by thousands of students and professionals worldwide Page 1 of 18
,Question 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
Question 2
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
Question 3
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
Question 4
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
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, Question 5
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
Question 6
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.
Question 7
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
Question 8
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
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