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Last Updated: Aug 01, 2026
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| Section | Objectives |
|---|---|
| Network Security | - Security Technologies
|
| Ethernet Switching Technology | - Switching Fundamentals
|
| IS-IS | - IS-IS Fundamentals
|
| Routing Basics | - IP Routing Fundamentals
|
| Routing and Traffic Control | - Traffic Management
|
| Network Solutions | - Enterprise Network Solutions
|
| BGP | - BGP Technologies
|
| IPv6 | - IPv6 Fundamentals
|
| Network Service and Management | - O&M Technologies
|
| OSPF | - OSPF Fundamentals
|
| Multicast | - IP Multicast Technologies
|
| Network Reliability | - Reliability Technologies
|
| WLAN | - Wireless Networking
|
1. On a network, each router has a local core routing table and protocol routing tables. A routing entry in the local core routing table has multiple key fields. Which of the following are included?
A) Routing protocol preference of a route
B) Routing protocol that learns a route
C) Destination address of a route
D) Inbound interface that learns a route
2. There are two types of routing entries on a PIM network. (S, G) routing entries are used to set up on a PIM network and are applicable to both PIM-DM and PIM-SM networks.
3. On an OSPF network, the default interface cost is calculated by dividing the default reference value by the actual interface bandwidth. By default, the reference value is______Mbit/s.
(Enter only digits.)
4. On an IS-IS network, each router can generate LSPs. Which of the following events trigger the generation of a new LSP?
A) Periodic updates occur.
B) Related IS-IS interfaces go up or down.
C) Inter-area IP routes change.
D) The IS-IS interface cost is increased.
5. Without a prior version check, an engineer configures IGMP snooping on a device and the version of IGMP snooping is earlier than the IGMP versions on user hosts. In this case, which of the following situations will occur?
A) Users cannot receive multicast data, but the device generates forwarding entries after receiving IGMP Report messages.
B) Users cannot receive multicast data because the device forwards received IGMP Report messages only to router ports and does not generate group member ports or forwarding entries.
C) The IGMP snooping version of the device is automatically degraded, and users can receive multicast data properly.
D) The IGMP versions of the hosts are automatically upgraded, and users can receive multicast data properly.
Solutions:
| Question # 1 Answer: A,B,C | Question # 2 Answer: Only visible for members | Question # 3 Answer: Only visible for members | Question # 4 Answer: A,B,D | Question # 5 Answer: B |
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