{"id":14783,"date":"2026-09-17T07:19:16","date_gmt":"2026-09-17T07:19:16","guid":{"rendered":"https:\/\/www.examlabs.com\/certification\/?p=14783"},"modified":"2026-09-17T07:19:16","modified_gmt":"2026-09-17T07:19:16","slug":"cisco-ccnp-300-415-practice-test-questions-and-exam-dumps-part15-q281-300","status":"publish","type":"post","link":"https:\/\/www.examlabs.com\/certification\/cisco-ccnp-300-415-practice-test-questions-and-exam-dumps-part15-q281-300\/","title":{"rendered":"Cisco CCNP 300-415 Practice Test Questions and Exam Dumps Part15 Q281-300"},"content":{"rendered":"

<\/h1>\n

View Full <\/b>Cisco CCNP 300-415 Exam Dumps<\/b><\/a> and Practice Test Dumps.<\/b><\/h2>\n

 <\/p>\n

Question 281<\/b><\/h3>\n

Which EIGRP table contains all routes learned from EIGRP neighbors, including routes that are not currently installed in the routing table?<\/b><\/p>\n

    \n
  1. Routing table<\/span><\/li>\n
  2. Neighbor table<\/span><\/li>\n
  3. Topology table<\/span><\/li>\n
  4. ARP table<\/span><\/li>\n<\/ol>\n

    Correct Answer: 3<\/b><\/p>\n

    Explanation<\/b><\/h3>\n

    The EIGRP topology table stores route information learned from EIGRP neighbors. It can contain multiple paths to a destination, including the successor and possible feasible successors. Not every route in the topology table is installed in the IP routing table. EIGRP uses information such as Feasible Distance and Reported Distance to determine which paths are eligible. The routing table contains only routes selected for forwarding, while the neighbor table records EIGRP peer relationships. The topology table is therefore essential when troubleshooting EIGRP path selection, convergence, and alternate routes that may become active after a topology change.<\/span><\/p>\n

    Question 282<\/b><\/h3>\n

    Which BGP attribute is used to prevent routing loops between autonomous systems?<\/b><\/p>\n

      \n
    1. Local Preference<\/span><\/li>\n
    2. AS Path<\/span><\/li>\n
    3. MED<\/span><\/li>\n
    4. Weight<\/span><\/li>\n<\/ol>\n

      Correct Answer: 2<\/b><\/p>\n

      Explanation<\/b><\/h3>\n

      The AS Path attribute helps BGP prevent routing loops between autonomous systems. When a BGP route is advertised through eBGP, the advertising router adds its autonomous system number to the AS Path. If a BGP router receives a route containing its own AS number, it normally rejects the route because accepting it could create a routing loop. AS Path is also used in the BGP best-path process, where a shorter path is generally preferred when earlier attributes are equal. Local Preference controls outbound policy within an autonomous system, MED can influence path selection between connected autonomous systems, and Weight is locally significant on Cisco routers.<\/span><\/p>\n

      Question 283<\/b><\/h3>\n

      Which OSPF LSA is generated by a DR on a broadcast multiaccess network?<\/b><\/p>\n

        \n
      1. Type 1<\/span><\/li>\n
      2. Type 3<\/span><\/li>\n
      3. Type 5<\/span><\/li>\n
      4. Type 2<\/span><\/li>\n<\/ol>\n

        Correct Answer: 4<\/b><\/p>\n

        Explanation<\/b><\/h3>\n

        A Type 2 Network LSA is generated by the Designated Router on a broadcast or other multiaccess OSPF network where a DR is elected. The Type 2 LSA represents the multiaccess network and lists the routers attached to that network. This design reduces the number of individual adjacencies and LSAs required between all routers on the segment. Type 1 LSAs are generated by individual routers, while Type 3 LSAs are generated by ABRs for inter-area networks. Type 5 LSAs advertise external routes. Point-to-point OSPF networks do not elect a DR or BDR and therefore do not generate a Type 2 Network LSA.<\/span><\/p>\n

        Question 284<\/b><\/h3>\n

        Which EIGRP packet is sent when a router needs information about an alternate route after losing its successor and having no feasible successor?<\/b><\/p>\n

          \n
        1. Query<\/span><\/li>\n
        2. Hello<\/span><\/li>\n
        3. Update<\/span><\/li>\n
        4. Acknowledgment<\/span><\/li>\n<\/ol>\n

          Correct Answer: 1<\/b><\/p>\n

          Explanation<\/b><\/h3>\n

          An EIGRP Query packet is used when a router needs to discover an alternate path after losing its current successor and having no feasible successor available. The router enters an active process and queries neighboring EIGRP routers for information about the destination. Neighbors respond with Reply packets, either providing a valid route or indicating that they do not have one. Excessive query propagation can increase convergence time, which is why EIGRP stub routers and route summarization are useful in large networks. Hello packets maintain neighbor relationships, while Update packets advertise routing information and acknowledgments confirm reliable EIGRP packet delivery.<\/span><\/p>\n

          Question 285<\/b><\/h3>\n

          Which BGP attribute is normally preferred when the value is lower?<\/b><\/p>\n

            \n
          1. Local Preference<\/span><\/li>\n
          2. Weight<\/span><\/li>\n
          3. MED<\/span><\/li>\n
          4. AS Path<\/span><\/li>\n<\/ol>\n

            Correct Answer: 3<\/b><\/p>\n

            Explanation<\/b><\/h3>\n

            MED, or Multi-Exit Discriminator, is generally preferred when its value is lower during the applicable BGP best-path comparison. It can be used to suggest which entry point another autonomous system should select when multiple links exist between the same autonomous systems. MED is commonly used to influence inbound traffic, although the receiving autonomous system can apply its own routing policies. Local Preference and Weight are normally preferred when higher. AS Path is generally preferred when shorter, but it is not a numerical attribute where simply saying \u201clower value\u201d describes the comparison. MED therefore represents the common lower-is-better attribute among these choices.<\/span><\/p>\n

            Question 286<\/b><\/h3>\n

            Which OSPF state indicates that two routers have synchronized their link-state databases?<\/b><\/p>\n

              \n
            1. Exchange<\/span><\/li>\n
            2. Full<\/span><\/li>\n
            3. Init<\/span><\/li>\n
            4. ExStart<\/span><\/li>\n<\/ol>\n

              Correct Answer: 2<\/b><\/p>\n

              Explanation<\/b><\/h3>\n

              The Full OSPF state indicates that neighboring routers have completed database synchronization and have fully established the adjacency. Before reaching Full, routers exchange Database Description packets and request missing LSAs using Link-State Request packets. Link-State Update packets provide the required information, and acknowledgments confirm receipt. The exact adjacency behavior depends on the network type. On a broadcast network, routers that are not adjacent to each other may remain in 2-Way because the DR and BDR control full adjacency formation. When a required OSPF adjacency reaches Full, the routers have synchronized the relevant link-state information.<\/span><\/p>\n

              Question 287<\/b><\/h3>\n

              Which EIGRP value represents the total metric calculated by a router for reaching a destination?<\/b><\/p>\n

                \n
              1. Reported Distance<\/span><\/li>\n
              2. Feasible Distance<\/span><\/li>\n
              3. Administrative Distance<\/span><\/li>\n
              4. Hold Time<\/span><\/li>\n<\/ol>\n

                Correct Answer: 2<\/b><\/p>\n

                Explanation<\/b><\/h3>\n

                Feasible Distance is the total best metric that an EIGRP router calculates to reach a destination through a particular successor. It represents the metric from the local router to the destination and is used by DUAL in path selection and feasibility calculations. Reported Distance, also called Advertised Distance, is the metric that a neighboring router reports for reaching the destination from itself. Administrative Distance determines the preference of routes from different routing sources and is separate from the EIGRP metric. Hold Time is associated with neighbor communication. Understanding Feasible Distance and Reported Distance is essential for identifying feasible successors.<\/span><\/p>\n

                Question 288<\/b><\/h3>\n

                Which BGP command provides information about BGP neighbor relationships, capabilities, timers, and exchanged prefixes?<\/b><\/p>\n

                  \n
                1. show ip bgp neighbors<\/span><\/li>\n
                2. show ip route bgp<\/span><\/li>\n
                3. show ip bgp<\/span><\/li>\n
                4. show ip protocols<\/span><\/li>\n<\/ol>\n

                  Correct Answer: 1<\/b><\/p>\n

                  Explanation<\/b><\/h3>\n

                  The show ip bgp neighbors command provides detailed information about configured BGP neighbors. Its output can include the neighbor’s remote AS, session state, negotiated capabilities, timers, message counters, address-family information, and prefix statistics. This makes the command particularly useful when troubleshooting BGP session establishment or route exchange. The show ip bgp command focuses primarily on the BGP routing table, while show ip route bgp displays BGP routes installed in the IP routing table. show ip protocols provides broader routing-protocol configuration information. For detailed peer-level BGP troubleshooting, show ip bgp neighbors is the most appropriate command.<\/span><\/p>\n

                  Question 289<\/b><\/h3>\n

                  Which OSPF LSA type identifies the location of an ASBR to routers in other areas?<\/b><\/p>\n

                    \n
                  1. Type 2<\/span><\/li>\n
                  2. Type 3<\/span><\/li>\n
                  3. Type 4<\/span><\/li>\n
                  4. Type 5<\/span><\/li>\n<\/ol>\n

                    Correct Answer: 3<\/b><\/p>\n

                    Explanation<\/b><\/h3>\n

                    A Type 4 ASBR Summary LSA is generated by an ABR to advertise reachability to an ASBR located in another OSPF area. This allows routers in other areas to determine how to reach the ASBR that originates external routes. Type 5 LSAs describe the external routes themselves, but they do not provide the inter-area path to the ASBR. Type 3 LSAs advertise inter-area networks, while Type 2 LSAs describe multiaccess networks. Understanding the distinction between Type 4 and Type 5 LSAs is important when troubleshooting external route reachability across multiple OSPF areas.<\/span><\/p>\n

                    Question 290<\/b><\/h3>\n

                    Which EIGRP feature allows traffic to be distributed across unequal-cost paths?<\/b><\/p>\n

                      \n
                    1. Split horizon<\/span><\/li>\n
                    2. Stub routing<\/span><\/li>\n
                    3. Route summarization<\/span><\/li>\n
                    4. Variance<\/span><\/li>\n<\/ol>\n

                      Correct Answer: 4<\/b><\/p>\n

                      Explanation<\/b><\/h3>\n

                      EIGRP variance enables unequal-cost load balancing. By default, EIGRP normally installs equal-cost paths, but variance allows certain qualifying paths with different metrics to participate in load balancing. An alternate route must satisfy EIGRP’s feasibility condition before it can be considered a feasible successor and used for unequal-cost load balancing. The variance value acts as a multiplier against the best metric to determine which additional paths may qualify. Split horizon controls route advertisement behavior, stub routing limits query scope, and route summarization reduces routing information. Variance is therefore the EIGRP feature specifically associated with unequal-cost load balancing.<\/span><\/p>\n

                      Question 291<\/b><\/h3>\n

                      Which BGP message is responsible for negotiating BGP session parameters when a peer relationship is established?<\/b><\/p>\n

                        \n
                      1. Update<\/span><\/li>\n
                      2. Open<\/span><\/li>\n
                      3. Keepalive<\/span><\/li>\n
                      4. Notification<\/span><\/li>\n<\/ol>\n

                        Correct Answer: 2<\/b><\/p>\n

                        Explanation<\/b><\/h3>\n

                        The BGP Open message is exchanged after the underlying TCP session is established and is used to negotiate important BGP session parameters. The Open message includes information such as the BGP version, autonomous system number, Hold Time, and BGP Identifier. Once both peers successfully process the Open messages, the session can move toward the Established state. Update messages exchange routing information after the session is established. Keepalive messages maintain the session, while Notification messages indicate serious errors and normally terminate the session. When troubleshooting BGP session establishment, checking the parameters exchanged through the Open message can help identify configuration mismatches.<\/span><\/p>\n

                        Question 292<\/b><\/h3>\n

                        Which OSPF network type normally elects a DR and BDR?<\/b><\/p>\n

                          \n
                        1. Point-to-point<\/span><\/li>\n
                        2. Loopback<\/span><\/li>\n
                        3. Broadcast<\/span><\/li>\n
                        4. Point-to-multipoint<\/span><\/li>\n<\/ol>\n

                          Correct Answer: 3<\/b><\/p>\n

                          Explanation<\/b><\/h3>\n

                          OSPF broadcast network types normally elect a Designated Router and Backup Designated Router. Ethernet LANs are common examples of broadcast multiaccess networks. The DR reduces the number of full OSPF adjacencies required and generates the Type 2 Network LSA for the segment. The BDR provides backup functionality if the DR fails. Point-to-point networks do not require DR or BDR elections because only two routers are involved. Point-to-multipoint networks also operate differently and normally do not use DR\/BDR elections. Understanding the OSPF network type is therefore important when determining expected neighbor states and adjacency behavior.<\/span><\/p>\n

                          Question 293<\/b><\/h3>\n

                          Which EIGRP condition must be satisfied for a route to qualify as a feasible successor?<\/b><\/p>\n

                            \n
                          1. Reported Distance must be less than Feasible Distance<\/span><\/li>\n
                          2. Feasible Distance must be less than Reported Distance<\/span><\/li>\n
                          3. Administrative Distance must equal 90<\/span><\/li>\n
                          4. Delay must be zero<\/span><\/li>\n<\/ol>\n

                            Correct Answer: 1<\/b><\/p>\n

                            Explanation<\/b><\/h3>\n

                            For an EIGRP route to qualify as a feasible successor, the neighbor’s Reported Distance must be less than the local router’s Feasible Distance. This is known as the feasibility condition and helps DUAL guarantee that the alternate route is loop-free. A feasible successor can be installed quickly when the current successor becomes unavailable, avoiding the need to enter an active query process in many cases. Administrative Distance does not determine whether a route is a feasible successor, and delay does not need to be zero. Understanding this condition is important when troubleshooting why an alternate EIGRP path is or is not eligible for immediate use.<\/span><\/p>\n

                            Question 294<\/b><\/h3>\n

                            Which BGP attribute is local to a Cisco router and is not advertised to BGP peers?<\/b><\/p>\n

                              \n
                            1. MED<\/span><\/li>\n
                            2. Local Preference<\/span><\/li>\n
                            3. Weight<\/span><\/li>\n
                            4. AS Path<\/span><\/li>\n<\/ol>\n

                              Correct Answer: 3<\/b><\/p>\n

                              Explanation<\/b><\/h3>\n

                              Weight is a Cisco-specific BGP attribute that is local to the router where it is configured. It is not advertised to BGP neighbors. When multiple paths are available, a higher Weight is preferred during Cisco’s BGP best-path selection process. This makes Weight useful for implementing a local routing preference without affecting other routers in the autonomous system. Local Preference, in contrast, is propagated through iBGP and is normally used to influence outbound traffic across an autonomous system. MED can be advertised between BGP neighbors, while AS Path is carried with BGP route advertisements. Weight is therefore the locally significant attribute.<\/span><\/p>\n

                              Question 295<\/b><\/h3>\n

                              Which OSPF packet is used to discover and maintain neighbor relationships?<\/b><\/p>\n

                                \n
                              1. Link-State Request<\/span><\/li>\n
                              2. Hello<\/span><\/li>\n
                              3. Database Description<\/span><\/li>\n
                              4. Link-State Update<\/span><\/li>\n<\/ol>\n

                                Correct Answer: 2<\/b><\/p>\n

                                Explanation<\/b><\/h3>\n

                                OSPF Hello packets are used to discover neighboring routers and maintain existing neighbor relationships. They are sent periodically through OSPF-enabled interfaces and contain information such as the Router ID, area ID, hello and dead intervals, network mask, and other parameters. Routers must agree on important values before forming an adjacency. If Hellos are no longer received within the configured dead interval, a router can declare the neighbor down. Database Description packets synchronize LSDB summaries, Link-State Requests ask for specific LSAs, and Link-State Updates carry LSAs. Hello packets are therefore fundamental to OSPF neighbor discovery and maintenance.<\/span><\/p>\n

                                Question 296<\/b><\/h3>\n

                                Which EIGRP route type has an administrative distance of 170 by default?<\/b><\/p>\n

                                  \n
                                1. Internal EIGRP<\/span><\/li>\n
                                2. External EIGRP<\/span><\/li>\n
                                3. Static route<\/span><\/li>\n
                                4. Connected route<\/span><\/li>\n<\/ol>\n

                                  Correct Answer: 2<\/b><\/p>\n

                                  Explanation<\/b><\/h3>\n

                                  External EIGRP routes have a default administrative distance of 170. These routes are learned through EIGRP but originated from another routing source and introduced into EIGRP through redistribution. Internal EIGRP routes have a default administrative distance of 90. Administrative distance determines how a router compares routes learned from different routing sources when the destination prefix is the same. It is separate from the EIGRP metric used to select among EIGRP paths. Therefore, when troubleshooting redistribution and route selection, distinguishing internal EIGRP from external EIGRP is important because their default administrative distances are significantly different.<\/span><\/p>\n

                                  Question 297<\/b><\/h3>\n

                                  Which BGP attribute describes how a route was introduced into BGP?<\/b><\/p>\n

                                    \n
                                  1. Origin<\/span><\/li>\n
                                  2. Weight<\/span><\/li>\n
                                  3. Local Preference<\/span><\/li>\n
                                  4. MED<\/span><\/li>\n<\/ol>\n

                                    Correct Answer: 1<\/b><\/p>\n

                                    Explanation<\/b><\/h3>\n

                                    The BGP Origin attribute indicates how a route was originally introduced into BGP. The common Origin values are IGP, EGP, and Incomplete. IGP is generally preferred over EGP, and EGP is generally preferred over Incomplete during the relevant best-path comparison. Routes introduced using a BGP network statement can commonly have an IGP origin code, while routes introduced through redistribution may have an Incomplete origin. Origin is different from AS Path, which records autonomous systems traversed, and from Local Preference, which influences outbound routing policy. Understanding the Origin attribute can help explain why otherwise similar BGP paths are selected differently.<\/span><\/p>\n

                                    Question 298<\/b><\/h3>\n

                                    Which OSPF protocol number is used directly at the IP layer?<\/b><\/p>\n

                                      \n
                                    1. 6<\/span><\/li>\n
                                    2. 17<\/span><\/li>\n
                                    3. 88<\/span><\/li>\n
                                    4. 89<\/span><\/li>\n<\/ol>\n

                                      Correct Answer: 4<\/b><\/p>\n

                                      Explanation<\/b><\/h3>\n

                                      OSPF uses IP protocol number 89 directly at the IP layer. It does not use TCP or UDP for its control-plane communication. This is an important distinction when configuring firewalls, access control lists, or security policies that must allow OSPF traffic. TCP uses protocol number 6, UDP uses 17, and EIGRP uses IP protocol number 88. OSPF packets include Hello, Database Description, Link-State Request, Link-State Update, and Link-State Acknowledgment messages. If protocol 89 traffic is blocked between routers, OSPF neighbor relationships may fail to form or existing adjacencies may be lost.<\/span><\/p>\n

                                      Question 299<\/b><\/h3>\n

                                      Which EIGRP packet is used to acknowledge reliable EIGRP packets?<\/b><\/p>\n

                                        \n
                                      1. Update<\/span><\/li>\n
                                      2. Query<\/span><\/li>\n
                                      3. Acknowledgment<\/span><\/li>\n
                                      4. Reply<\/span><\/li>\n<\/ol>\n

                                        Correct Answer: 3<\/b><\/p>\n

                                        Explanation<\/b><\/h3>\n

                                        EIGRP uses acknowledgment packets to confirm receipt of reliable EIGRP packets. Reliable transport is important for packets such as Updates, Queries, and Replies because the sender needs confirmation that the information was successfully received. EIGRP uses its own reliable transport mechanism rather than relying on TCP. Hello packets do not require acknowledgment because they are used primarily for neighbor discovery and maintenance. Queries request routing information, while Replies provide responses to Queries. Acknowledgments therefore play an important role in ensuring reliable delivery of EIGRP control information and supporting consistent topology information between neighboring routers.<\/span><\/p>\n

                                        Question 300<\/b><\/h3>\n

                                        Which BGP state indicates that the BGP session is fully established and the peers can exchange routing information?<\/b><\/p>\n

                                          \n
                                        1. Active<\/span><\/li>\n
                                        2. OpenSent<\/span><\/li>\n
                                        3. Established<\/span><\/li>\n
                                        4. Idle<\/span><\/li>\n<\/ol>\n

                                          Correct Answer: 3<\/b><\/p>\n

                                          Explanation<\/b><\/h3>\n

                                          The Established state indicates that the BGP session has successfully completed the session-establishment process and the peers can exchange routing information. In this state, BGP Update messages can be exchanged between the neighbors. Other states occur earlier in the process. Idle is the initial or inactive state, Active indicates that BGP is attempting to establish a TCP connection, and OpenSent means an Open message has been sent and the router is waiting for the peer’s response. When troubleshooting BGP, reaching Established is an important indication that the session itself is operational, although routing-policy issues can still prevent expected prefixes from being exchanged.<\/span><\/p>\n

                                           <\/p>\n","protected":false},"excerpt":{"rendered":"

                                          View Full Cisco CCNP 300-415 Exam Dumps and Practice Test Dumps.   Question 281 Which EIGRP table contains all routes learned from EIGRP neighbors, including routes that are not currently installed in the routing table? Routing table Neighbor table Topology table ARP table Correct Answer: 3 Explanation The EIGRP topology table stores route information learned […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[1648,1647],"tags":[],"_links":{"self":[{"href":"https:\/\/www.examlabs.com\/certification\/wp-json\/wp\/v2\/posts\/14783"}],"collection":[{"href":"https:\/\/www.examlabs.com\/certification\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.examlabs.com\/certification\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.examlabs.com\/certification\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.examlabs.com\/certification\/wp-json\/wp\/v2\/comments?post=14783"}],"version-history":[{"count":1,"href":"https:\/\/www.examlabs.com\/certification\/wp-json\/wp\/v2\/posts\/14783\/revisions"}],"predecessor-version":[{"id":14835,"href":"https:\/\/www.examlabs.com\/certification\/wp-json\/wp\/v2\/posts\/14783\/revisions\/14835"}],"wp:attachment":[{"href":"https:\/\/www.examlabs.com\/certification\/wp-json\/wp\/v2\/media?parent=14783"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.examlabs.com\/certification\/wp-json\/wp\/v2\/categories?post=14783"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.examlabs.com\/certification\/wp-json\/wp\/v2\/tags?post=14783"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}