NRS-1 Practice Test From Nokia's Site Questions With Complete Solutions

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