{"id":11879,"date":"2026-09-14T12:48:53","date_gmt":"2026-09-14T12:48:53","guid":{"rendered":"https:\/\/www.examlabs.com\/certification\/?p=11879"},"modified":"2026-09-14T12:48:53","modified_gmt":"2026-09-14T12:48:53","slug":"cisco-ccna-200-301-practice-test-questions-and-exam-dumps-part-10-q181-200","status":"publish","type":"post","link":"https:\/\/www.examlabs.com\/certification\/cisco-ccna-200-301-practice-test-questions-and-exam-dumps-part-10-q181-200\/","title":{"rendered":"Cisco CCNA 200-301 Practice Test Questions and Exam Dumps Part 10 Q181-200"},"content":{"rendered":"

View Full\u00a0Cisco 200-301 Exam Dumps<\/a>\u00a0and Practice Test Dumps.<\/b><\/h2>\n

 <\/p>\n

Question 181<\/b><\/h3>\n

Which command configures a Cisco router to forward DHCP requests from clients to a DHCP server on another subnet?<\/b><\/p>\n

    \n
  1. ip helper-address<\/span><\/li>\n
  2. ip dhcp relay<\/span><\/li>\n
  3. dhcp-server enable<\/span><\/li>\n
  4. forward-dhcp<\/span><\/li>\n<\/ol>\n

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

    Explanation<\/b><\/p>\n

    The <\/span>ip helper-address<\/span> command enables a router interface to forward certain UDP broadcasts, including DHCP requests, to a specified DHCP server. DHCP clients initially send DHCPDISCOVER messages as broadcasts because they do not yet have an IP address or know the DHCP server location. Routers normally do not forward broadcasts between subnets. By configuring <\/span>ip helper-address<\/span> on the client-facing interface, the router converts the request into a unicast transmission toward the DHCP server. This allows centralized DHCP services to provide addresses to clients across multiple routed networks.<\/span><\/p>\n

    Question 182<\/b><\/h3>\n

    Which OSPF parameter determines the preferred path based on the speed of an interface?<\/b><\/p>\n

      \n
    1. Administrative distance<\/span><\/li>\n
    2. Cost<\/span><\/li>\n
    3. Router ID<\/span><\/li>\n
    4. Area number<\/span><\/li>\n<\/ol>\n

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

      Explanation<\/b><\/p>\n

      OSPF uses a metric called cost to select the best path toward a destination. By default, Cisco calculates interface cost based on the reference bandwidth divided by the interface bandwidth. Faster interfaces generally receive lower costs, making them more attractive to OSPF. When multiple routes to the same destination exist, OSPF uses the total accumulated cost to determine the shortest path. Administrative distance is used to compare different routing protocols, while the router ID identifies an OSPF router and the area number defines OSPF organizational boundaries.<\/span><\/p>\n

      Question 183<\/b><\/h3>\n

      What is the primary purpose of Dynamic Trunking Protocol (DTP) on a Cisco switch?<\/b><\/p>\n

        \n
      1. To assign IP addresses automatically<\/span><\/li>\n
      2. To encrypt trunk traffic<\/span><\/li>\n
      3. To negotiate trunking between switches<\/span><\/li>\n
      4. To prevent MAC address flooding<\/span><\/li>\n<\/ol>\n

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

        Explanation<\/b><\/p>\n

        Dynamic Trunking Protocol, or DTP, is a Cisco proprietary protocol used to dynamically negotiate whether a switch port should operate as a trunk. DTP can allow two directly connected Cisco switches to determine whether trunking should be established based on their configured modes. Trunk links are used to carry traffic for multiple VLANs between switches. DTP does not provide encryption, DHCP services, or MAC address security. In many production networks, administrators manually configure trunking and may disable DTP to reduce unnecessary negotiation and improve security.<\/span><\/p>\n

        Question 184<\/b><\/h3>\n

        Which statement describes the main purpose of a native VLAN on an IEEE 802.1Q trunk?<\/b><\/p>\n

          \n
        1. It carries only management traffic<\/span><\/li>\n
        2. It is used exclusively for voice traffic<\/span><\/li>\n
        3. It prevents all broadcast traffic<\/span><\/li>\n
        4. It carries untagged frames<\/span><\/li>\n<\/ol>\n

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

          Explanation<\/b><\/p>\n

          The native VLAN on an IEEE 802.1Q trunk is the VLAN whose frames are transmitted without an 802.1Q VLAN tag. Both ends of a trunk should normally have the same native VLAN configuration to avoid connectivity problems and potential security issues. The native VLAN is not automatically reserved for management or voice traffic. Administrators can choose which VLAN serves as the native VLAN, although using an unused VLAN is often recommended for security. Tagged frames belonging to other VLANs continue to include their appropriate VLAN identifiers.<\/span><\/p>\n

          Question 185<\/b><\/h3>\n

          Which STP device becomes the root bridge during the election process?<\/b><\/p>\n

            \n
          1. The switch with the lowest bridge ID<\/span><\/li>\n
          2. The switch with the highest MAC address<\/span><\/li>\n
          3. The switch with the highest interface speed<\/span><\/li>\n
          4. The switch with the lowest IP address<\/span><\/li>\n<\/ol>\n

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

            Explanation<\/b><\/p>\n

            Spanning Tree Protocol elects a root bridge by comparing bridge IDs among participating switches. The bridge ID consists primarily of the bridge priority and MAC address. The switch with the lowest bridge ID becomes the root bridge. Priority is considered first, and if multiple switches have the same priority, the switch with the lowest MAC address wins the election. STP then calculates paths toward the root bridge and places selected ports into forwarding or blocking states. This process helps prevent Layer 2 switching loops while maintaining redundant connectivity.<\/span><\/p>\n

            Question 186<\/b><\/h3>\n

            Which DHCP message does a client send first when attempting to obtain an IPv4 address dynamically?<\/b><\/p>\n

              \n
            1. DHCPOFFER<\/span><\/li>\n
            2. DHCPDISCOVER<\/span><\/li>\n
            3. DHCPREQUEST<\/span><\/li>\n
            4. DHCPACK<\/span><\/li>\n<\/ol>\n

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

              Explanation<\/b><\/p>\n

              DHCPDISCOVER is the first message in the normal DHCPv4 address-assignment process. A client that needs an IP address sends a DHCPDISCOVER message as a broadcast because it does not initially know the DHCP server’s address. Available DHCP servers respond with DHCPOFFER messages containing proposed configuration information. The client then sends DHCPREQUEST to select an offer, and the chosen server responds with DHCPACK to confirm the lease. Remembering this DORA sequence\u2014Discover, Offer, Request, Acknowledge\u2014is useful for troubleshooting DHCP address-assignment problems.<\/span><\/p>\n

              Question 187<\/b><\/h3>\n

              What happens when an IPv4 packet does not match any specific route in a router’s routing table but a default route exists?<\/b><\/p>\n

                \n
              1. The packet is discarded immediately<\/span><\/li>\n
              2. The router sends it to the default route<\/span><\/li>\n
              3. The router converts it into a broadcast<\/span><\/li>\n
              4. The router forwards it using ARP only<\/span><\/li>\n<\/ol>\n

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

                Explanation<\/b><\/p>\n

                A default route provides a fallback path for packets whose destination does not match any more-specific entry in the routing table. It is commonly represented as <\/span>0.0.0.0\/0<\/span> for IPv4. When no specific route exists, the router uses the default route if one is configured and valid. The packet is then forwarded toward the default route’s next hop or exit interface. Without a matching route or usable default route, the router normally discards the packet and may generate an ICMP destination-unreachable message.<\/span><\/p>\n

                Question 188<\/b><\/h3>\n

                Which security feature can restrict a switch port so that only a specified number of MAC addresses can use it?<\/b><\/p>\n

                  \n
                1. DHCP Snooping<\/span><\/li>\n
                2. BPDU Guard<\/span><\/li>\n
                3. Port Security<\/span><\/li>\n
                4. Dynamic ARP Inspection<\/span><\/li>\n<\/ol>\n

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

                  Explanation<\/b><\/p>\n

                  Cisco switch Port Security limits which MAC addresses can access a Layer 2 switch port. An administrator can configure a maximum number of secure MAC addresses and specify how those addresses are learned or configured. If unauthorized addresses appear, the switch can take actions such as restricting traffic or shutting down the port, depending on the configured violation mode. DHCP Snooping protects against unauthorized DHCP servers, BPDU Guard protects PortFast-enabled ports from unexpected BPDUs, and Dynamic ARP Inspection helps protect against certain ARP-based attacks.<\/span><\/p>\n

                  Question 189<\/b><\/h3>\n

                  Which protocol is commonly used by wireless networks to reduce collisions when multiple devices share the same radio medium?<\/b><\/p>\n

                    \n
                  1. CSMA\/CA<\/span><\/li>\n
                  2. CSMA\/CD<\/span><\/li>\n
                  3. STP<\/span><\/li>\n
                  4. ARP<\/span><\/li>\n<\/ol>\n

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

                    Explanation<\/b><\/p>\n

                    Wireless Ethernet networks commonly use Carrier Sense Multiple Access with Collision Avoidance, or CSMA\/CA. A wireless device listens to the medium before transmitting and uses mechanisms designed to reduce the probability of collisions. Wireless devices cannot reliably detect collisions in the same manner as traditional half-duplex wired Ethernet, which historically used CSMA\/CD. CSMA\/CA therefore attempts to avoid collisions before transmission. STP is used to prevent Layer 2 loops, while ARP maps IPv4 addresses to MAC addresses and is unrelated to wireless medium access.<\/span><\/p>\n

                    Question 190<\/b><\/h3>\n

                    Which IPv6 mechanism allows a host to automatically configure a global IPv6 address using information provided by a router?<\/b><\/p>\n

                      \n
                    1. NAT64<\/span><\/li>\n
                    2. SLAAC<\/span><\/li>\n
                    3. PAT<\/span><\/li>\n
                    4. ARP<\/span><\/li>\n<\/ol>\n

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

                      Explanation<\/b><\/p>\n

                      Stateless Address Autoconfiguration, or SLAAC, allows IPv6 hosts to automatically generate addresses without requiring a traditional DHCPv6 server for address assignment. Routers send Router Advertisement messages containing network prefix information and other configuration details. The host uses this information to construct an IPv6 address and performs Duplicate Address Detection to verify uniqueness. IPv6 does not use ARP; instead, Neighbor Discovery Protocol performs related functions. NAT64 provides IPv6-to-IPv4 translation, while PAT is primarily associated with IPv4 address translation.<\/span><\/p>\n

                      Question 191<\/b><\/h3>\n

                      Which command displays the MAC address table learned by a Cisco switch?<\/b><\/p>\n

                        \n
                      1. show mac address-table<\/span><\/li>\n
                      2. show interfaces mac<\/span><\/li>\n
                      3. show vlan mac<\/span><\/li>\n
                      4. display mac-table<\/span><\/li>\n<\/ol>\n

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

                        Explanation<\/b><\/p>\n

                        The <\/span>show mac address-table<\/span> command displays MAC addresses that a Cisco switch has learned. The output typically includes the VLAN, MAC address, type, and interface associated with each entry. This information is valuable when troubleshooting Layer 2 connectivity because it helps administrators determine where the switch believes a particular device is located. MAC addresses are dynamically learned from source MAC addresses in incoming Ethernet frames. The table changes over time as devices communicate, and inactive dynamic entries can eventually age out.<\/span><\/p>\n

                        Question 192<\/b><\/h3>\n

                        What is the main purpose of an extended IPv4 ACL compared with a standard ACL?<\/b><\/p>\n

                          \n
                        1. It can filter traffic based only on destination IP addresses<\/span><\/li>\n
                        2. It can filter traffic using source and destination addresses and protocols<\/span><\/li>\n
                        3. It automatically encrypts matching packets<\/span><\/li>\n
                        4. It assigns VLANs to users<\/span><\/li>\n<\/ol>\n

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

                          Explanation<\/b><\/p>\n

                          Extended IPv4 access control lists provide more detailed traffic filtering than standard ACLs. They can evaluate source and destination IP addresses, IP protocols, and transport-layer information such as TCP or UDP port numbers. This allows an administrator to permit or deny specific types of traffic between particular hosts or networks. Standard ACLs primarily evaluate the source IPv4 address. ACLs do not encrypt packets or automatically assign VLANs. Proper placement and ordering are important because ACL entries are processed sequentially from top to bottom.<\/span><\/p>\n

                          Question 193<\/b><\/h3>\n

                          Which technology provides a single logical link by combining multiple physical Ethernet links between network devices?<\/b><\/p>\n

                            \n
                          1. PortFast<\/span><\/li>\n
                          2. EtherChannel<\/span><\/li>\n
                          3. DHCP Snooping<\/span><\/li>\n
                          4. VTP<\/span><\/li>\n<\/ol>\n

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

                            Explanation<\/b><\/p>\n

                            EtherChannel combines multiple physical Ethernet interfaces into one logical interface. This provides increased aggregate bandwidth and redundancy while allowing STP to treat the bundle as a single logical link. Cisco switches can use protocols such as LACP to negotiate EtherChannel membership. All interfaces in a channel should have compatible configurations, including speed, duplex, VLAN, and trunk settings where applicable. If one physical link fails, the remaining links can continue forwarding traffic. EtherChannel is therefore useful for improving both availability and bandwidth between switches.<\/span><\/p>\n

                            Question 194<\/b><\/h3>\n

                            Which value is used by a router to determine which routing source is more trustworthy when routes to the same destination are learned from different routing protocols?<\/b><\/p>\n

                              \n
                            1. OSPF cost<\/span><\/li>\n
                            2. Metric<\/span><\/li>\n
                            3. Administrative distance<\/span><\/li>\n
                            4. Hop count<\/span><\/li>\n<\/ol>\n

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

                              Explanation<\/b><\/p>\n

                              Administrative distance, or AD, indicates how trustworthy a route source is when a router learns routes to the same destination through different routing protocols or sources. A lower administrative distance is preferred over a higher one. For example, a directly connected route has an AD of 0, while a static route normally has an AD of 1. Routing protocol metrics such as OSPF cost or RIP hop count are used to select paths within a particular routing protocol. AD is used first when comparing different route sources.<\/span><\/p>\n

                              Question 195<\/b><\/h3>\n

                              Which protocol provides centralized authentication, authorization, and accounting services for network users and devices?<\/b><\/p>\n

                                \n
                              1. AAA<\/span><\/li>\n
                              2. NTP<\/span><\/li>\n
                              3. SNMP<\/span><\/li>\n
                              4. Syslog<\/span><\/li>\n<\/ol>\n

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

                                Explanation<\/b><\/p>\n

                                AAA stands for Authentication, Authorization, and Accounting. It provides a framework for controlling access to network devices and services. Authentication verifies who a user is, authorization determines what that authenticated user is allowed to do, and accounting records information about user activity. Cisco networks commonly implement AAA with protocols such as TACACS+ or RADIUS. NTP synchronizes clocks, SNMP is used for network monitoring and management, and Syslog collects event messages. AAA is especially useful in larger networks where centralized access control is required.<\/span><\/p>\n

                                Question 196<\/b><\/h3>\n

                                Which IPv4 address represents the limited broadcast address?<\/b><\/p>\n

                                  \n
                                1. 0.0.0.0<\/span><\/li>\n
                                2. 127.0.0.1<\/span><\/li>\n
                                3. 255.255.255.255<\/span><\/li>\n
                                4. 224.0.0.1<\/span><\/li>\n<\/ol>\n

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

                                  Explanation<\/b><\/p>\n

                                  The IPv4 address <\/span>255.255.255.255<\/span> is the limited broadcast address. A packet sent to this address is intended for all IPv4 hosts on the local network segment and is not routed by routers to other networks. This address can be useful when a device needs to communicate with local hosts before it knows the appropriate network or broadcast address. <\/span>127.0.0.1<\/span> is the IPv4 loopback address, <\/span>0.0.0.0<\/span> can represent an unspecified address, and <\/span>224.0.0.1<\/span> is an IPv4 multicast address for all hosts.<\/span><\/p>\n

                                  Question 197<\/b><\/h3>\n

                                  Which command places a Cisco switch interface into a specific access VLAN?<\/b><\/p>\n

                                    \n
                                  1. switchport vlan 10<\/span><\/li>\n
                                  2. switchport access vlan 10<\/span><\/li>\n
                                  3. vlan assign 10<\/span><\/li>\n
                                  4. access-vlan 10<\/span><\/li>\n<\/ol>\n

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

                                    Explanation<\/b><\/p>\n

                                    The command <\/span>switchport access vlan 10<\/span> assigns an access port to VLAN 10. The interface should normally be configured as an access port using <\/span>switchport mode access<\/span> before assigning the VLAN. An access port carries traffic for a single VLAN and is commonly used for end-user devices such as computers, printers, and IP phones under appropriate configurations. The command is entered from interface configuration mode. Using the correct VLAN assignment ensures that devices connected to the port participate in the intended Layer 2 broadcast domain.<\/span><\/p>\n

                                    Question 198<\/b><\/h3>\n

                                    Which wireless identifier is normally configured by an administrator to represent the name users see when selecting a Wi-Fi network?<\/b><\/p>\n

                                      \n
                                    1. SSID<\/span><\/li>\n
                                    2. BSSID<\/span><\/li>\n
                                    3. MAC table<\/span><\/li>\n
                                    4. VLAN ID<\/span><\/li>\n<\/ol>\n

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

                                      Explanation<\/b><\/p>\n

                                      The Service Set Identifier, or SSID, is the wireless network name that users typically see when scanning for available Wi-Fi networks. Administrators configure an SSID to identify a particular wireless network and associate it with appropriate security and network settings. The BSSID identifies a specific wireless access point radio, commonly using a MAC address, while the VLAN ID identifies a Layer 2 VLAN rather than the wireless network name. Multiple access points can advertise the same SSID to provide wireless coverage across a larger area.<\/span><\/p>\n

                                      Question 199<\/b><\/h3>\n

                                      Which protocol is designed to synchronize the clocks of network devices across an IP network?<\/b><\/p>\n

                                        \n
                                      1. SNMP<\/span><\/li>\n
                                      2. Syslog<\/span><\/li>\n
                                      3. NTP<\/span><\/li>\n
                                      4. FTP<\/span><\/li>\n<\/ol>\n

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

                                        Explanation<\/b><\/p>\n

                                        Network Time Protocol, or NTP, synchronizes the clocks of network devices across an IP network. Accurate time is important for troubleshooting, authentication, logging, and security analysis because events from different devices can be correlated correctly when their timestamps are synchronized. NTP uses a hierarchy of time sources known as strata. Network devices can synchronize with an NTP server and then maintain their clocks based on the received time information. SNMP is mainly used for monitoring, Syslog collects event messages, and FTP transfers files.<\/span><\/p>\n

                                        Question 200<\/b><\/h3>\n

                                        What is the primary purpose of NETCONF in network automation?<\/b><\/p>\n

                                          \n
                                        1. To provide wireless encryption<\/span><\/li>\n
                                        2. To transfer files between routers<\/span><\/li>\n
                                        3. To configure and manage network devices programmatically<\/span><\/li>\n
                                        4. To provide IP address translation<\/span><\/li>\n<\/ol>\n

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

                                          Explanation<\/b><\/p>\n

                                          NETCONF is a network management protocol designed to allow network devices to be configured and managed programmatically. It commonly works with YANG data models to provide structured configuration and operational data. NETCONF supports automation by allowing management systems to make consistent configuration changes without relying exclusively on interactive CLI sessions. This is useful in larger environments where administrators need repeatable and scalable operations. NETCONF is not a wireless security protocol, file-transfer protocol, or NAT mechanism. It is an important component of modern network programmability.<\/span><\/p>\n

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

                                          View Full\u00a0Cisco 200-301 Exam Dumps\u00a0and Practice Test Dumps.   Question 181 Which command configures a Cisco router to forward DHCP requests from clients to a DHCP server on another subnet? ip helper-address ip dhcp relay dhcp-server enable forward-dhcp Correct Answer: 1 Explanation The ip helper-address command enables a router interface to forward certain UDP broadcasts, […]<\/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\/11879"}],"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=11879"}],"version-history":[{"count":1,"href":"https:\/\/www.examlabs.com\/certification\/wp-json\/wp\/v2\/posts\/11879\/revisions"}],"predecessor-version":[{"id":11880,"href":"https:\/\/www.examlabs.com\/certification\/wp-json\/wp\/v2\/posts\/11879\/revisions\/11880"}],"wp:attachment":[{"href":"https:\/\/www.examlabs.com\/certification\/wp-json\/wp\/v2\/media?parent=11879"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.examlabs.com\/certification\/wp-json\/wp\/v2\/categories?post=11879"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.examlabs.com\/certification\/wp-json\/wp\/v2\/tags?post=11879"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}