200-125 Cisco Certified Network Associate (CCNA) Exam Set 1

A newly implemented IP-based video conferencing application is causing the network to slow down. Which OSI layer needs to be addressed to resolve the problem?


Options are :

  • Layer 1 (Correct)
  • Layer 3
  • Layer 4
  • Layer 2

Answer : Layer 1

Which device creates broadcast domains and enables communication across separate broadcast domains?


Options are :

  • router (Correct)
  • hub
  • switch
  • access points

Answer : router

Which of the following is NOT a dynamic table maintained by a router running the EIGRP routing protocol?


Options are :

  • topology table
  • neighbor table
  • CAM table (Correct)
  • routing table

Answer : CAM table

Which of the following protocols is responsible for negotiating upper-layer protocols that will be carried across a Point-to-Point Protocol (PPP) connection?


Options are :

  • .LCP
  • NCP (Correct)
  • LMI
  • ISDN

Answer : NCP

Which of the following statements are true when discussing link state and distance vector routing protocols? (Choose all that apply.)


Options are :

  • Link-state protocols require a hierarchical IP addressing scheme for optimal functionality (Correct)
  • Distance vector protocols send the entire routing table to a neighbor (Correct)
  • After convergence, routing advertisements are only triggered by changes in the network with distance vector protocols
  • Link-state protocols use hello packets and LSAs from other routers to build and maintain the topological database (Correct)
  • .Link-state protocols place a high demand on router resources running the link-state algorithm (Correct)
  • Packets are routed based upon the shortest path calculated by an algorithm with link state protocols (Correct)

Answer : Link-state protocols require a hierarchical IP addressing scheme for optimal functionality Distance vector protocols send the entire routing table to a neighbor Link-state protocols use hello packets and LSAs from other routers to build and maintain the topological database .Link-state protocols place a high demand on router resources running the link-state algorithm Packets are routed based upon the shortest path calculated by an algorithm with link state protocols

Which command would be used to list the timers, version of spanning tree and the bridge ID of the local and designated switch for a specific VLAN on a Cisco Catalyst 2950 series switch?


Options are :

  • show vlan vlan-id
  • show vlan database
  • show spanning-tree vlan vlan-id (Correct)
  • show vlan brief

Answer : show spanning-tree vlan vlan-id

Which feature is NOT provided by flow control?


Options are :

  • windowing
  • buffering
  • full duplex transmission (Correct)
  • source-quench messaging

Answer : full duplex transmission

Which three statements are TRUE regarding a Local Area Network (LAN)? (Choose three.)


Options are :

  • A LAN provides fast data transmission (Correct)
  • A LAN is confined to one building or campus. (Correct)
  • A LAN can cover great distances.
  • A LAN is easily expandable. (Correct)

Answer : A LAN provides fast data transmission A LAN is confined to one building or campus. A LAN is easily expandable.

Which two are TRUE of straight-through cable? (Choose two.)


Options are :

  • You can connect a hub to a switch using a straight through cable
  • It is also known as a patch cable. (Correct)
  • The wires on the cable are crossed over.
  • You can connect two routers using a straight-through cable.
  • You can connect a switch to a router using a straight through cable. (Correct)

Answer : It is also known as a patch cable. You can connect a switch to a router using a straight through cable.

File Transfer Protocol (FTP) and Simple Mail Transfer Protocol (SMTP) work at which layer in the Open Systems Interconnection (OSI) model?


Options are :

  • the Session layer
  • the Application layer (Correct)
  • the Network layer
  • the Presentation layer

Answer : the Application layer

Which of the following commands sets the local router to serve as an authoritative time source?


Options are :

  • ntp server
  • ntp authenticate
  • ntp master (Correct)
  • ntp peer

Answer : ntp master

Your network consists of one HSRP group of six routers. All of the routers are functioning properly. The network has been stable for several days. In which HSRP state are most of the routers?


Options are :

  • Listen (Correct)
  • Learn
  • Standby
  • Active

Answer : Listen

What is the HSRP virtual router MAC address for the virtual router for HSRP group 31?


Options are :

  • 0000.0c07.ac1f (Correct)
  • 0c07
  • 07.ac
  • ac1f

Answer : 0000.0c07.ac1f

You are the network administrator for your company. You want to implement a routing protocol that can support hierarchical routing, multiple vendor environments, and authentication, and provides fast convergence. Which routing protocol will you implement?


Options are :

  • Interior Gateway Routing Protocol (IGRP)
  • Enhanced Interior Gateway Routing Protocol (EIGRP)
  • Open Shortest Path First (OSPF) (Correct)
  • Routing Information Protocol version 2 (RIPv2)

Answer : Open Shortest Path First (OSPF)

Which feature enables a host to obtain an IP address from a DHCP server on another subnet?


Options are :

  • DHCP BOOTP relay
  • DHCP relay agent (Correct)
  • DHCP BOOTP agent
  • DHCP relay protocol

Answer : DHCP relay agent

What configuration is needed to span a user defined Virtual LAN (VLAN) between two or more switches?


Options are :

  • VTP pruning should be enabled
  • A trunk connection should be set up between the switches (Correct)
  • The VTP mode of operation should be server
  • A VTP domain must be configured.

Answer : A trunk connection should be set up between the switches

Which classful protocols perform an automatic summarization of routes when routers send updates across major classful network boundaries? (Choose two.)


Options are :

  • RIPv1 (Correct)
  • OSPF
  • RIPv2
  • IGRP (Correct)

Answer : RIPv1 IGRP

Which two are NOT features of Cisco NAT implementation? (Choose two.)


Options are :

  • overload
  • override (Correct)
  • overrule (Correct)
  • static NAT

Answer : override overrule

What is the default administrative distance of a static route?


Options are :

  • 1 (Correct)
  • 110
  • 90
  • 0

Answer : 1

Which of the following commands configures an SNMP host to authenticate a user by username and send clear text notifications, the receipt of which will be acknowledged by the receiver?


Options are :

  • Router(config)# snmp-server host 192.168.5.5 informs version 2c public
  • Router(config)# snmp-server host 192.168.5.5 traps version 3 auth public
  • Router(config)# snmp-server host 192.168.5.5 informs version 3 noauth public (Correct)
  • Router(config)# snmp-server host 192.168.5.5 informs version 3 authpriv public

Answer : Router(config)# snmp-server host 192.168.5.5 informs version 3 noauth public

Which Cisco IOS command would you use to troubleshoot IP addressing problems?


Options are :

  • ipconfig /all
  • show config
  • show running-config (Correct)
  • show config-file

Answer : show running-config

Which of the following features is used with the ip nat inside command to translate multiple devices in the internal network to the single address in the IP address pool?


Options are :

  • static
  • override
  • overload (Correct)
  • dynamic

Answer : overload

You know that Router2 is configured for RIP. Which Cisco Internetwork Operating System (IOS) command is used to view the current state of all active routing protocols?


Options are :

  • show ip protocols (Correct)
  • show ip routing process
  • debug ip rip
  • show ip arp

Answer : show ip protocols

You are the network administrator for your company. You have been assigned the task of configuring an appropriate IP addressing scheme in the network. Assuming that the network address is 192.16.100.0/28, what will be the number of hosts per network in this scenario?


Options are :

  • 2
  • 30
  • 14 (Correct)
  • 6

Answer : 14

Which Cisco IOS command configures the clock rate to 64,000 bits per second on an interface?


Options are :

  • clock rate 64k
  • clock rate 64000 (Correct)
  • clockrate 64000
  • clock-rate 64000

Answer : clock rate 64000

During the process of connecting four switches to the central router and implementing VLANS between the devices, it becomes apparent that there was a misunderstanding about which encapsulation protocol to use on the links between the switches and the router. If there is mismatch between the encapsulation types used on the router interface and the type used on the connected switch port, what will be the result?


Options are :

  • The relevant switch ports will be amber.
  • The relevant switch ports will be green and flashing
  • The relevant switch ports will be neither green nor amber. (Correct)
  • The relevant switch ports will be green.

Answer : The relevant switch ports will be neither green nor amber.

You apply the following commands to a router named R2: R2(config)# interface Tunnel1 R2(config-if)# ip address 172.16.1.2 255.255.255.0 R2(config-if)# ip mtu 1400 R2(config-if)# ip tcp adjust-mss 1360 R2(config-if)# tunnel source 2.2.2.2 R2(config-if)# tunnel destination 1.1.1.1 Which statement is NOT true with regard to this configuration?


Options are :

  • The configuration alters the maximum segment size
  • The configuration will increase packet fragmentation (Correct)
  • The connection will operate in IP mode
  • The physical IP address of R2 is 2.2.2.2

Answer : The configuration will increase packet fragmentation

You have multiple departments sharing a common network. You are concerned about network traffic from one department reaching another department. What would be a solution for isolating the departments? (Choose all that apply.)


Options are :

  • Configure separate subnets for each department (Correct)
  • Configure separate VLANs for each department. (Correct)
  • Assign a unique VTP domain for each department.
  • Configure trunk links between departmental switches
  • Put each department in a separate collision domain

Answer : Configure separate subnets for each department Configure separate VLANs for each department.

Which switch will be selected as the root bridge by Spanning Tree Protocol (STP)?


Options are :

  • switch with lowest IP address
  • switch with lowest number of root ports
  • switch with lowest Media Access Control (MAC) address
  • switch with lowest bridge ID (Correct)

Answer : switch with lowest bridge ID

Which of the following commands could you use to verify the type of serial cable you are connected to (DCE or DTE)?


Options are :

  • show ip interface
  • show interfaces
  • show interface dce
  • show controllers (Correct)

Answer : show controllers

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