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| Section | Weight | Objectives |
|---|---|---|
| Routing Basics | 3% | - Routing table composition and selection rules - Routing concepts and classification |
| Network Security | 8% | - Attack defense and security policy - AAA authentication - ACL and packet filtering |
| OSPF Fundamentals | 16% | - OSPF principles and operation mechanisms - OSPF special applications and troubleshooting - OSPF configuration and optimization |
| IPv6 Technologies | 3% | - IPv6 routing protocols - IPv6 address structure and configuration |
| IS-IS Fundamentals | 8% | - IS-IS protocol principles - IS-IS configuration and deployment |
| Multicast Technologies | 9% | - PIM protocol - IGMP protocol - Multicast basic concepts |
| Network Service and Management | 5% | - Network management and monitoring - DHCP and DNS services |
| Routing and Traffic Control | 10% | - Routing policy and filtering - Route import and redistribution - Policy-based routing |
| BGP Fundamentals | 17% | - BGP route attributes and selection - BGP characteristics and working principles - BGP configuration and policy application |
| Ethernet Switching Technologies | 7% | - VLAN principles and configuration - Spanning Tree Protocol - Link aggregation and stack technology |
| Network Reliability | 7% | - VRRP protocol - Device redundancy and link backup - BFD technology |
| Network Solutions and Design | 5% | - Typical network architecture and solution - Enterprise network design principles |
| WLAN Basics | 2% | - WLAN deployment and optimization - WLAN technology principles |
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NEW QUESTION # 271
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.
Answer:
Explanation:
SPT
* Routing Entries in PIM
* (S, G) entries: Represent the shortest path tree (SPT) from a specific source (S) to a specific multicast group (G). These entries are created after data packets are transmitted directly from the source to the receivers.
* (S, G) entries are used in both PIM-DM and PIM-SM modes.
* PIM-DM and PIM-SM Modes
* In PIM-DM, multicast traffic is initially flooded throughout the network and pruned where no receivers exist. (S, G) entries represent source-specific paths created after the flooding stage.
* In PIM-SM, multicast traffic initially flows through a shared tree, but (S, G) entries are created when the network switches to the SPT for more efficient forwarding.
* HCIP-Datacom-Core Reference
* The functionality and application of (S, G) routing entries are detailed in multicast and PIM configuration chapters.
NEW QUESTION # 272
Which of the following descriptions about MP-BGP is wrong?
Answer: A
NEW QUESTION # 273
A firewall receives a packet that PC1 sends to PC2. Which of the following statements are true?
Answer: A
Explanation:
The security policy specifies that traffic originating from12.1.1.2and destined for the untrust zone is permitted. Since the source address of the packet (12.1.1.1) does not match this rule, thepacket matches the default implicit deny rule. However, rule 1 does not deny all other traffic explicitly, so the packet is forwarded based on further configurations .
NEW QUESTION # 274
To prevent inter-area routing loops, OSPF does not allow advertising routing information between two non- backbone areas and allows sing routing information only within an area or between the backbone area and a non-backbone area. Therefore, each ABR must be connected to the backbone area.
Answer: B
Explanation:
OSPF (Open Shortest Path First) mandates that the backbone area (Area 0) serves as the central area for routing information exchange. To avoid inter-area routing loops, routing information is only exchanged between the backbone area and non-backbone areas, not directly between two non-backbone areas.
Consequently, each Area Border Router (ABR) must connect to the backbone area to facilitate this routing exchange .
NEW QUESTION # 275
Which of the following statements regarding an IP prefix are true?
Answer: B
Explanation:
An IP prefix filter is designed to match both the IP address and its prefix length, making it suitable for filtering routing information rather than data packets. Options A and D are incorrect because IP prefix filters do not work directly on data packets, and they can match both prefix numbers and lengths .
NEW QUESTION # 276
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