CCNAX 200-120 Quiz#1 Online Test

A receiving host has failed to receive all of the segments that it should acknowledge. What can the host do to improve the reliability of this communication session?


When a station sends a transmission to the MAC address ff:ff:ff:ff:ff:ff, what type of transmission is it?


Segmentation of a data stream happens at which layer of the OSI model?


Routers operate at layer __. LAN switches operate at layer __. Ethernet hubs operate at layer __. Word processing operates at layer __.


When data is encapsulated, which is the correct order?


Which of the following is not  a cause of LAN congestion?


If a switch has three computers connected to it, with no VLANs present, how many broadcast and collision domains is the switch creating?


Acknowledgments, sequencing, and flow control are characteristics of which OSI layer?


If a hub has three computers connected to it, how many broadcast and collision domains is the hub creating?


What is the purpose of flow control?


You want to implement a network medium that is not susceptible to EMI. Which type of cabling should you use?


What type of RJ45 UTP cable is used between switches?


What type of RJ45 UTP cable do you use to connect a PC’s COM port to a router or switch console port?


You have the following binary number: 10110111. What are the decimal and hexadecimal equivalents?


Which of the following contention mechanisms is used by Ethernet?


In the operation of CSMA/CD, which host(s) have priority after the expiration of the backoff algorithm?


Which of the following is correct?


Which of the following statements is false with respect to full duplex?


Which statement is correct with regard to a MAC address?


Which part of a MAC address is called the organizationally unique identifier (OUI)?


What must happen if a DHCP IP conflict occurs?


Which of the following allows a router to respond to an ARP request that is intended for a remote host?


You want to implement a mechanism that automates the IP configuration, including IP address, subnet mask, default gateway, and DNS information. Which protocol will you use to accomplish this?


What protocol is used to find the hardware address of a local device?


Which class of IP address provides a maximum of only 254 host addresses per network ID?


Which layer-4 protocol is used for a Telnet connection?


How does a DHCP client ensure that no other computer has its assigned IP address?


The following illustration shows a data structure header. What protocol is this header from?

16-Bit Source Port 16-Bit Destination Port

32-Bit Sequence Number

32-Bit Acknowledgement Number

4-Bit Header Length Reserved Flags 16-Bit Window Size

16-Bit TCP Checksum 16-Bit Urgent Pointer

Options


If you use either Telnet or FTP, what layer are you using to generate the data?


The DoD model (also called the TCP/IP stack) has four layers. Which layer of the DoD model is equivalent to the Network layer of the OSI model?


What is the maximum number of IP addresses that can be assigned to hosts on a local subnet that uses the 255.255.255.224 subnet mask?


You have a network that needs 29 subnets while maximizing the number of host addresses available on each subnet. How many bits must you borrow from the host field to provide the correct subnet mask?


What is the subnetwork address for a host with the IP address 200.10.5.68/28?


The network address of 172.16.0.0/19 provides how many subnets and host


If a host on a network has the address 172.16.45.14/30, what is the subnetwork this host belongs to?


Which mask should you use on point-to-point WAN links in order to reduce the waste of IP addresses?


What is the subnetwork number of a host with an IP address of 172.16.66.0/21?


You have an interface on a router with the IP address of 192.168.192.10/29. Including the router interface, how many hosts can have IP addresses on the LAN attached to the router interface?


You need to configure a server that is on the subnet 192.168.19.24/29. The router has the first available host address. Which of the following should you assign to the server?


You have an interface on a router with the IP address of 192.168.192.10/29. What is the broadcast address the hosts will use on this LAN?


On a VLSM network, which mask should you use on point-to-point WAN links in order to reduce the waste of IP addresses?


To test the IP stack on your local host, which IP address would you ping?


What is the only connection type that supports the use of the /30 mask?


What network service is the most likely problem if you can ping a computer by IP address but not by name?


What command displays the ARP table on a Cisco router?


You type show running-config and get this output:

[output cut]

line console 0

Exec-timeout 1 44

Password 7 098C0BQR

Login

[output cut]

What do the two numbers following the exec-timeout command mean?


Which of the following connection methods available to connect to a router is considered out-of-band ?


Which of the following commands sets the secret password to Cisco?


You try to telnet into SFRouter from router Corp and receive this message:

Corp#telnet SFRouter

Trying SFRouter (10.0.0.1)…Open

Password required, but none set

[Connection to SFRouter closed by foreign host]

Corp#

Which of the following sequences will address this problem correctly?


What is the problem with an interface if you type show interface serial 0  and receive the following message?

Serial0 is administratively down, line protocol is down


What does the command confreg 0x2142 provide?


Which command will copy the IOS to a backup host on your network?


The corporate office sends you a new router to connect, but upon connecting the console cable, you see that there is already a configuration on the router. What should be done before a new configuration is entered in the router?


Which command will show you the IOS version running on your router?


Which command displays the configuration register setting?


What command will prevent RIP routing updates from exiting an interface but will still allow the interface to receive RIP route updates?


Which of the following is the best description of the operation of split horizon?


A network administrator views the output from the show ip route command. A network that is advertised by both RIP and EIGRP appears in the routing table flagged as an IGRP route. Why is the RIP route to this network not used in the routing table?


You have the following routing table. Which of the following networks will not be placed in the neighbor routing table?

R 192.168.30.0/24 [120/1] via 192.168.40.1, 00:00:12, Serial0

C 192.168.40.0/24 is directly connected, Serial0

172.16.0.0/24 is subnetted, 1 subnets

C 172.16.30.0 is directly connected, Loopback0

R 192.168.20.0/24 [120/1] via 192.168.40.1, 00:00:12, Serial0

R 10.0.0.0/8 [120/15] via 192.168.40.1, 00:00:07, Serial0

C 192.168.50.0/24 is directly connected, Ethernet0


Where are EIGRP successor routes stored?


You get a call from a network administrator who tells you that he typed the following into his router:

Router(config)#router ospf 1

Router(config-router)#network 10.0.0.0 255.0.0.0 area 0

He tells you he still can’t see any routes in the routing table. What configuration error did the administrator make?


For some reason, you cannot establish an adjacency relationship on a common Ethernet link between two routers. Looking at the output below, what is the cause of the problem?

RouterA#

Ethernet0/0 is up, line protocol is up

Internet Address 172.16.1.2/16, Area 0

Process ID 2, Router ID 172.126.1.2, Network Type BROADCAST, Cost: 10

Transmit Delay is 1 sec, State DR, Priority 1

Designated Router (ID) 172.16.1.2, interface address 172.16.1.1

No backup designated router on this network

Timer intervals configured, Hello 5, Dead 20, Wait 20, Retransmit 5

RouterB#

Ethernet0/0 is up, line protocol is up

Internet Address 172.16.1.1/16, Area 0

Process ID 2, Router ID 172.126.1.1, Network Type BROADCAST, Cost: 10

Transmit Delay is 1 sec, State DR, Priority 1

Designated Router (ID) 172.16.1.1, interface address 172.16.1.2

No backup designated router on this network

Timer intervals configured, Hello 10, Dead 40, Wait 40, Retransmit 5


If routers in a single area are configured with the same priority value, what value does a router use for the OSPF Router ID in the absence of a loopback interface?


Which command will install a Right-to-use license so you can use an evaluation version of a feature


Which command backs up your license to flash memory?




















































































































Description:

This quiz will test your knowledge on the concepts of chapters 1-8 and 16.

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