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السؤال #1
Which command is used on a Catalyst 2950 series switch to enable basic port security on the interface?
A. set port-security
B. switchport port-security
C. set port-security enable
D. switchport port-security enable
عرض الإجابة
اجابة صحيحة: B
السؤال #2
Which Cisco IOS command will display the following partial output?
A. show ip
B. show ip route
C. show ip route summary
D. show route summary
عرض الإجابة
اجابة صحيحة: B
السؤال #3
You are working with an Internet Service Provider (ISP) as network manager. A corporate client approaches you to lease a public IP subnet that can accommodate 250 users. You have assigned him the 192.25.27.0 subnet. What subnet mask should be assigned to this IP address so that it can accommodate the number of users required by the corporate client?
A. 255
B. 255
C. 255
D. 255
عرض الإجابة
اجابة صحيحة: A
السؤال #4
Which metric does the Open Shortest Path First (OSPF) routing protocol use for optimal path calculation?
A. MTU
B. Cost
C. Delay
D. Hop count
عرض الإجابة
اجابة صحيحة: B
السؤال #5
Which Cisco Internetwork Operating System (IOS) command is used to view information about the Dynamic Host Configuration Protocol (DHCP) address pool?
A. show ip dhcp server statistics
B. show ip dhcp pool
C. show dhcp pool
D. show ip dhcp server pool
عرض الإجابة
اجابة صحيحة: B
السؤال #6
Which statements are TRUE regarding Internet Protocol version 6 (IPv6) addresses? (Choose three.)
A. An IPv6 address is divided into eight 16-bit groups
B. A double colon (::) can only be used once in a single IPv6 address
C. IPv6 addresses are 196 bits in length
D. Leading zeros cannot be omitted in an IPv6 address
E. Groups with a value of 0 can be represented with a single 0 in IPv6 address
عرض الإجابة
اجابة صحيحة: ABE
السؤال #7
Your assistant has been assigned the task of configuring one end of a WAN link between two offices. The link is a serial connection and the router on the other end is a non-Cisco router. The router in the other office has an IP address of 192.168.8.6/24. The connection will not come up, so you ask your assistant to show you the commands he configured on the Cisco router. The commands he executed are shown below. Ciscorouter(config)# interface serial0/0 Ciscorouter(config-if)# ip address 192.168.8.5 255.255.
A. Ciscorouter(config-if)# no ip address 192
B. Ciscorouter(config-if)# encapsulation ppp
C. Ciscorouter(config-if)# encapsulation ansi
D. Ciscorouter(config-if)# authentication chap
عرض الإجابة
اجابة صحيحة: B
السؤال #8
Which of the following is NOT a packet type used by Enhanced Interior Gateway Routing Protocol (EIGRP)?
A. Query
B. Reply
C. Ack
D. Response
عرض الإجابة
اجابة صحيحة: D
السؤال #9
You have two routers in your OSPF area 0. Router 1 is connected to Router 2 via its Serial 1 interface, and to your ISP via the Serial 0 interface. Router 1 is an ASBR. After your assistant configures a default route on Router 1, you discover that whenever either router receives packets destined for networks that are not in the routing tables, it causes traffic loops between the two routers. To troubleshoot, you execute the show run command on Router 1. Part of the output is shown below: IP
A. Execute the no default-information originate command
B. Execute the no ip route 0
C. Execute the default-information originate always command
D. Execute the no network 192
عرض الإجابة
اجابة صحيحة: B
السؤال #10
What IOS command produced the following output?
A. show interface mac
B. show mac
C. show mac-address-table
D. show ip interface
عرض الإجابة
اجابة صحيحة: C
السؤال #11
What command disables 802.1x authentication on a port and permits traffic without authentication?
A. dot1x port-control disable
B. dot1x port-control force-unauthorized
C. dot1x port-control auto
D. dot1x port-control force-authorized
عرض الإجابة
اجابة صحيحة: D
السؤال #12
Which of the following cables would be used to connect a router to a switch?
A. v
B. crossover
C. rollover
D. straight-through
عرض الإجابة
اجابة صحيحة: D
السؤال #13
Which Cisco Internetwork Operating System (IOS) command is used to encrypt passwords on Cisco routers?
A. password secure
B. service encryption-password
C. service password-encryption
D. enable password
عرض الإجابة
اجابة صحيحة: C
السؤال #14
Which two features do Cisco routers offer to mitigate distributed denial-of-service (DDoS) attacks? (Choose two.)
A. Anti-DDoS guard
B. Scatter tracing
C. Access control lists (ACLs)
D. Flow control
E. Rate limiting
عرض الإجابة
اجابة صحيحة: CE
السؤال #15
Which commands would be used to enable Enhanced Interior Gateway Routing Protocol (EIGRP) on a router, and configure the IP addresses 10.2.2.2 and 192.168.1.1 as a part of complete EIGRP configuration? (Choose three.)
A. router eigrp 10
B. router eigrp
C. network 10
D. network 10
E. network 192
F. network 192
عرض الإجابة
اجابة صحيحة: ADE
السؤال #16
Which is the valid IP address range that can be assigned to hosts on the subnet that includes the address 172.16.4.6/23?
A. 172
B. 172
C. 172
D. 172
عرض الإجابة
اجابة صحيحة: C
السؤال #17
Which of the following technologies should be used to prevent a switching loop if a switch is connected to a port configured for PortFast?
A. RSTP
B. BPDU Guard
C. Root Guard
D. PVST
عرض الإجابة
اجابة صحيحة: B
السؤال #18
You just finished configuring VLAN Trunking Protocol (VTP) in a network containing five switches. One of the switches is not receiving VLAN information from the switch that is acting as the server. Which of the following could NOT be a reason why the switch is not receiving the information?
A. The VTP domain name on the switch may be misspelled
B. The VTP password may be misspelled on the switch
C. The configuration revision number may be out of sync
D. The VTP version used on the switch may be different
عرض الإجابة
اجابة صحيحة: C
السؤال #19
What is the broadcast address for subnet 172.25.4.0/23?
A. 172
B. 172
C. 172
D. 172
عرض الإجابة
اجابة صحيحة: B
السؤال #20
You set up several routers in your lab. Two of them are connected back to back using Data Terminal Equipment (DTE)-to-Data Circuit-terminating Equipment (DCE) cable. You need to configure the clock rate. On which router would you configure the clock rate?
A. the DCE
B. the DTE
C. The clock rate is set by default
D. The clock rate cannot be configured
عرض الإجابة
اجابة صحيحة: A
السؤال #21
The execution of the show interfaces command yields the following as a part of its output: Ethernet 0/0 is up, line protocol is down Which of the following can be determined from this output?
A. the link is not functional due to a Data Link layer issue
B. the link is fully functional
C. the link is not functional due to a Physical layer issue
D. the link is not functional due to both a Physical layer and a Data Link layer issue
عرض الإجابة
اجابة صحيحة: A
السؤال #22
You are the network administrator for your company. You want to use both IPv6 and IPv4 applications in the network. You also want to ensure that routers can route both IPv6 and IPv4 packets. Which deployment model should be implemented to accomplish the task?
A. IPv6 over IPv4 tunnels
B. IPv6 over dedicated Wide Area Network (WAN) links
C. Dual-Stack Backbones
D. Protocol translation
عرض الإجابة
اجابة صحيحة: C
السؤال #23
Which of the following is NOT true of APIC-EM?
A. It supports greenfield but not brownfield deployments
B. It provides a single point for network automation
C. It saves time and cost
D. It is open and programmable
عرض الإجابة
اجابة صحيحة: A
السؤال #24
You are troubleshooting a problem with two routers configured in a HSRP group. You intended to configure the routers so that Router A and Router B would each track their respective Fa0/1 interfaces and decrement their priorities for several VLAN groups if the tracked interface went down. However, you find that Router A is not taking over as the active device for the HSRP group on VLAN 101 when the Fa0/1 interface on Router B fails. Which command would NOT be useful for discovering the problem?
A. show running-configuration
B. show vlans
C. show standby brief
D. show standby
عرض الإجابة
اجابة صحيحة: B
السؤال #25
You have a Telnet session established with a switch from a router. You would like to maintain that connection while you return to the session with the router, and then easily return to the switch session after connecting to the router. What command should you use?
A. x
B. resume
C. suspend
D. shift
عرض الإجابة
اجابة صحيحة: A
السؤال #26
Which Internet Control Message Protocol (ICMP) message is sent by a host in the network to test connectivity with another host?
A. ICMP redirect message
B. ICMP echo-request message
C. ICMP time-exceeded message
D. ICMP destination-unreachable message
عرض الإجابة
اجابة صحيحة: B
السؤال #27
Which is the valid broadcast ID for the IP address 192.24.134.12 with a subnet mask of 255.255.255.128?
A. 192
B. 192
C. 192
D. 192
عرض الإجابة
اجابة صحيحة: A
السؤال #28
Which service is denoted by TCP/UDP port number 53?
A. Domain Name Service (DNS)
B. File Transfer Protocol (FTP)
C. Telnet
D. HTTP
عرض الإجابة
اجابة صحيحة: A
السؤال #29
You are the network administrator for your company. You are in the process of verifying the configuration of the network devices to ensure smooth network connectivity. You want information on the routes taken by packets so that you are able to identify the network points where packets are getting dropped. Which Cisco IOS command should you use to accomplish this task in the most efficient manner?
A. tracert
B. traceroute
C. extended ping
D. ping
عرض الإجابة
اجابة صحيحة: B
السؤال #30
Which device will always have all of its ports in the same collision domain?
A. Hub
B. Bridge
C. Switch
D. Router
عرض الإجابة
اجابة صحيحة: A
السؤال #31
Which Cisco IOS command is used to provide a description to an interface?
A. description
B. interface-description
C. interface description
D. description interface number
عرض الإجابة
اجابة صحيحة: A
السؤال #32
Your network is configured as shown in the following exhibit. When you trace traffic sourced from R3 destined for a LAN network off of R2 (not shown in the diagram), you see the traffic is being forwarded from R1 to ISP1 rather than to R2. Which of the following issues could NOT be causing this behavior?
A. The network command has not been executed on the interface leading to the LAN off R2
B. The passive interface command has been issued on the Gi0/4 interface of R1
C. A default route exists on R1 that leads to ISP1
D. RIPv2 has not been enabled on R2
عرض الإجابة
اجابة صحيحة: B
السؤال #33
Router 5 has four interfaces. The networks hosted on each interface are as follows: Fa0/1 192.168.5.4/29 Fa0/2 192.168.6.0/24 Fa0/3 192.168.7.0/24 S0/0 172.16.5.0/24 You execute the following commands on the router: Router5(config)# router bgp 20 Router5(config-router)# network 192.168.5.0 Router5(config-router)# network 192.168.6.0 Router5(config-router)# network 192.168.7.0 Router5(config-router)# network 172.16.5.0 Router5(config-router)# neighbor 172.16.5.2 remote-as 50 Router5(config-router)# aggregate
A. 192
B. 172
C. 192
D. 192
E. none of these will be present
F. only network addresses beginning with 192 will be present
عرض الإجابة
اجابة صحيحة: ABCD
السؤال #34
Which of the following commands will configure a router to use DNS for hostname resolution?
A. ip dns primary
B. ip domain lookup
C. ip dns server
D. ip name-server
عرض الإجابة
اجابة صحيحة: B
السؤال #35
Which Cisco command will display the version and configuration data for Secure Shell (SSH)?
A. show ssh
B. show ip ssh
C. debug ssh
D. debug ip ssh
عرض الإجابة
اجابة صحيحة: B
السؤال #36
You have implemented the following IP SLA configuration, as shown in the following partial output of the show run command: ip sla 1 dns cow.cisco.com name-server 10.52.128.30 ip sla schedule 1 start-time now Which of the following statements is true of this configuration?
A. It will find the response time to resolve the DNS name cow
B. It will find the response time to connect to the DNS server at 10
C. It will start in one minute
D. It will gather data from one minute
عرض الإجابة
اجابة صحيحة: A
السؤال #37
Which of the following commands will let you see the current operating mode for a switch port?
A. show interface fastethernet0/1 detail
B. show controllers fastethernet0/1
C. show interface fastethernet0/1 status
D. show interfaces fastethernet0/1 switchport
عرض الإجابة
اجابة صحيحة: D
السؤال #38
You are implementing IP SLA and would like to use it to measure hop-by-hop response time between a Cisco router and any IP device on the network. Which of the following IP SLA operations would you use for this?
A. ICMP path echo operation
B. Internet Control Message Protocol Echo Operation
C. UDP Jitter Operation for VoIP
D. UDP Jitter Operation
عرض الإجابة
اجابة صحيحة: A
السؤال #39
As part of a new initiative to tighten the security of your Cisco devices, you have configured the firewall to restrict access to the devices from the outside. What would be other recommended ways of protecting the integrity of the device configuration files on the devices while ensuring your continued ability to manage the devices remotely? (Choose all that apply.)
A. encrypt the configuration files
B. use SSH to connect to the devices for management
C. prevent the loss of administrator passwords by disabling their encryption
D. disable the VTY ports on the devices
E. use an encrypted password for VTY access
عرض الإجابة
اجابة صحيحة: BE
السؤال #40
Examine the following diagram: While troubleshooting an OSPF routing problem, you need to determine the cost for Router F to reach the 192.168.5.0 24 network via the best route. What will that cost be?
A. 110
B. 2
C. 3
D. 7
عرض الإجابة
اجابة صحيحة: B

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