HomeCCNA practice Exam 5 CCNA practice Exam 5 A default Frame Relay WAN is classified as what type of physicalnetwork? broadcast point-to-multipoint nonbroadcast multipoint nonbroadcast multi-access broadcast multi-access Host A receives a frame and discards it after determining that it is corrupt. At which OSI layer are frames checked for errors? Physical Data-link FCS or CRC Application The command frame-relay map ip 10.126.16.9 102 broadcast was entered on the router.Which of the following statements is true concerning this command? This command should be executed from the global configuration mode. The IP address 10.121.16.8 is the local router port used to forward data. 102 is the remote DLCI that will receive the information. This command is required for all Frame Relay configurations. The broadcast option allows packets, such as RIP updates, to be forwarded across the PVC. Which of the following is true of a Switch? Switches forward packets based on Layer3 protocol. Switches forward packets based on IPX address. Switches forward packets based on MAC address. Switches forward packets based on IP address. Which protocol working at the Transport layer provides a connectionless service between hosts? IP ARP UDP TCP Which one of the following is a Class C IP address? 135.23.112.57 10.10.14.118 204.67.118.54 191.200.199.199 How many bytes is an Ethernet address? 4 6 8 16 After carefully examining the network diagram above, select the correct statement regarding broadcast and collision domains: There are two broadcast domains and 12 collision domains. There is one broadcast domain and seven collision domains. There are two broadcast domains and seven collision domains. There are two broadcast domains and five collision domains. You are asked to evolve a TCP/IP addressing scheme for your Organization. How many network numbers (subnet number) must you allow when you design the network for your organization? One for each WAN connection only One for each network card One for each subnet, one for each WAN connection One subnet for each Host You find that one of the serial interfaces on your router is not forwarding traffic. You have given “show ip interfaces” command. In the response, you observed the following entries against that interface: Serial 0 is up, line protocol is down. What is the likely problem? There is a problem with the route both at physical and protocol layers The link was administratively down There is a problem exchanging the routing information There is a problem at physical layer An administrator issues the command “ping 127.0.0.1″ from the command line prompt on a PC host named PC1. If an ICMP reply is received, what does this confirm? The PC host PC1 has the TCP/IP protocol stack correctly installed The PC host PC1 has connectivity up to Layer 5 of the OSI model The PC host PC1 has connectivity with a local host The PC host PC1 has connectivity with a Layer 3 device What range of addresses can be used in the first octet of a Class B network address? 1-126 1-127 128-190 128-191 How should a router that is being used in a Frame Relay network be configured to avoid split horizon issues from preventing routing updates? Configure a single sub-interface to establish multiple PVCconnections to multiple remote router interfaces Configure a separate sub-interface for each PVC with a unique DLCI and subnet assigned to the sub-interface Configure many sub-interfaces on the same subnet Configure each Frame Relay circuit as a point-to-point line to support multicast and broadcast traffic Match the following: A. Repeaters 1. Data Link Layer B. Bridges 2. Network Layer C. Routers 3. Physical Layer A —>2, B—>3, C—>1 A—>3, B—->1, C—->2 A—>3, B—–>2, C—->1 A—->1, B—->2, C—->3 You want to ping the loopback address of your local host. What will you type? (choose two) Ping ::1 Trace 0.0.::1 Ping 127.0.0.1 Ping 0.0.0.0 A client workstation is connected to a DHCP server through a switch and a router, The client machine has been able to access the network resources without any problem. However, after the recent configuration change on the DHCP server, the client workstation is not able to access any network resources. What is the likely solution. Issue a tracert command to DHCP serve Reset switch MAC address table Clear arp cache on the router Issue a tracert command to DHCP server Use ipconfig command with /release and /renew options Frame Relay technique uses Circuit Switching Message Switching Connection oriented Packet Switching Hybrid Switching What protocol is used to find the hardware address of a local device? RARP ICMP ARP BootP Two sub layers of OSI Data Link layer are which of the following? Data Link Control, Physical Layer Control Logical Link Control, Media Access Control Media Access Control, Physical Layer Control Logical Link Control, Data Link Control FDDI is an example of which topology? Bus Topology Ring Topology Star Topology None of these Which of the following commands is used to verify the encapsulation type on a frame relay link? show interfaces show frame-relay map show frame-relay pvc show frame -relay lmi Please see the figure below. Host A is trying to telnet to Host B. However, the Ethernet interface fa0/0 on RTC is not functioning. Which of the following statements are true? (choose 2 best answers) RTC will inform Host A that Host B is unreachable RTC will inform RTA that Host B is unreachable RTC will send a destination unreachable message RTB will send a destination unreachable message to RTA Identify which of the services below use both TCP and UDP ports: FTP DNS TELNET SSH Which of the following requires thst all channels in a message transmission path be of the same speed? Packet-switched Networks Circuit-switched Networks Message-switched Networks None of the above An administrator issues the command “ping 127.0.0.1″ from the command line prompt on a PC host named PC1. If an ICMP reply is received, what does this confirm? The PC host PC1 has the TCP/IP protocol stack correctly installed The PC host PC1 has a default gateway correctly configured The PC host PC1 has a default gateway correctly The PC host PC1 has connectivity with a Layer 3 device The PC host PC1 has connectivity with a local host Which of the following are true regarding passwords on a Cisco router? a) All passwords can be encrypted b) All passwords can be entered using the set-up dialogue c) A password can be set before a user can enter the privileged mode d) A password can be set for individual lines e) TACACS or Radius password authentication can be used. a, b, and c a only a,c,d, and e none of the above How should a router that is being used in a Frame Relay network be configured to avoid split horizon issues from preventing routing updates? Configure a separate sub-interface for each PVC with a unique DLCI and subnet assigned to the sub-interface Configure a single sub-interface to establish multiple PVCconnections to multiple remote router interfaces Configure each Frame Relay circuit as a point-to-point line to support multicast and broadcast traffic Configure many sub-interfaces on the same subnet Match the following: 1. Segments A. Associated with Data Link Layer 2. Packets B. Associated with Network Layer 3. Frames C. Associated with Transport Layer 1—>A; 2—->B; 3 —>C 1—>C; 2—->B; 3 —>A 1—>C; 2—->A; 3 —>B 1—>A; 2—->C; 3 —>B What would the result be when the following commands are executed on a Cisco Catalyst switch: TechTarget-SW1 (config-if)# switchport port-security TechTarget-SW1 (config-if)# switchport port-security mac-address sticky The MAC address learned dynamically is saved permanently in the VLAN database. The first MAC address “seen” on the specific port is allowed to access the network until the port-security timer expires The first MAC address “seen” on the specific port is allowed to access the network until the port-security timer expires The MAC address learned dynamically is saved in the switch’s startup-configuration. You have an IP of 156.233.42.56 with a subnet mask of 7 bits. How many hosts and subnets are possible assuming that subnet 0 is not used? 512 subnets and 128 hosts 510 subnets and 126 hosts 128 subnets and 512 hosts 512 subnets and 128 hosts 126 subnets and 510 hosts Loading …
