CIST 2451 Final Study v5.1

What is the subnet address for the address 2001:DB8:BC15:A:12AB::1/64?

2001:DB8:BC15:A::0

Which three IP addresses are private? (choose three)

10.172.167.1 172.20.4.4 192.168.5.254 private ranges are: 10.0.0.0 to 10.255.255.255 172.16.0.0 to 172.31.255.255 192.168.0.0 to 192.168.255.255

Which IPv4 address can be pinged to test the internal TCP/IP operation of a host?

127.0.0.1

Refer to the exhibit. What is the maximum TTL value that is used to reach the destination www.cisco.com?

13 *TTL is Time To Live - on far left for tracert

How many bits make up the single IPv6 hextet :10CD:

16 *all hextets are 16 bits

A company has a network address of 192.168.1.64 with a subnet mask of 255.255.255.192. The company wants to create two subnetworks that would contain 10 hosts and 18 hosts respectively. Which two networks would achieve that? (Choose two.)

192.168.1.64/27 192.168.1.96/28

A company is expanding its business to other countries. All branch offices must remain connected to corporate headquarters at all times. Which network technology is required to support this requirement?

WAN

Which WLAN security protocol generates a new dynamic key each time a client establishes a connection with the AP?

WPA

Which type of wireless security generates dynamic encryption keys each time a client associates with an AP?

WPA

Port numbers ranging from 0 to 1023 are considered to be ____________ __________ ports.

Well Known

What two preconfigured settings that affect security are found on most new wireless routers? (Choose two.)

Broadcast SSID default administrator password

Which keys act as a hot key combination that is used to interrupt an IOS process?

CTRL-Shift - 6

What three application layer protocols are part of the TCP/IP protocol suite? (Choose three.)

DHCP DNS FTP

A host PC has just booted and is attempting to lease an address through DHCP. Which two messages will the client typically broadcast on the network? (Choose two.)

DHCPDISCOVER DHCPREQUEST

Which statement is true regarding the UDP client process during a session with a server?

Datagrams that arrive in a different order than that in which they were sent are not placed in order

Match the IPv6 address to the IPv6 address type. (Not all options are used) Link-Local

FE80:0:56BA:FFEE:A0b4:47FF:FE36:532B FE80::1

During normal operation, from which location do most Cisco routers run the IOS?

RAM

During normal operation, from which location do most Cisco switches and routers run the IOS?

RAM

Which two statements correctly describe a router memory type and its contents? (Choose two)

ROM is nonvolatile and contains basic diagnostic software. RAM is volatile and stores the IP routing table.

Which protocol supports rapid delivery of streaming media?

Real-Time Transport Protocol

Which publicly available resources describe protocols, processes, and technologies for the Internet but do not give implementation details?

Request for Comments

Refer to the exhibit. From which location did this router load the IOS?

Router memory is loaded from flash memory flash memory

Which statement describes a characteristic of the Cisco router management ports?

a console port is not used for packet forwarding

Fill in the blank. Point-to-point communications where both devices can transmit and receive on the medium at the same time are known as ________ ________.

full-duplex

Wireless

guest access in a coffee shop waiting rooms in a hospital

Copper Cables

horizontal cabling structure desktop PCs in an enterprise office

Which communication tool allows real-time collaboration?

instant messaging

Why would a network administrator use the tracert utility?

to identify where a packet was lost or delayed on a network

What is the purpose of the network security accounting function?

to keep track of the actions of a user

What is the purpose of ICMP messages?

to provide feedback of IP packet transmissions

What is the purpose of the routing process?

to select the paths that are used to direct traffic to destination networks

In a network that uses IPv4, what prefix would best fit a subnet containing 100 hosts?

/25

48. Consider the following range of addresses: 2001:0DB8:BC15:00A0:0000:: 2001:0DB8:BC15:00A1:0000:: 2001:0DB8:BC15:00A2:0000:: ... 2001:0DB8:BC15:00AF:0000:: The prefix-length for the range of addresses is ______

/60

Which two notations are usable nibble boundaries when subnetting in IPv6? (Choose two.)

/64 /68

Refer to the exhibit. The network administrator enters these commands into the R1 router: R1# copy running-config tftp Address or name of remote host [ ]? When the router prompts for an address or remote host name, what IP address should the administrator enter at the prompt?

192.168.11.252 *that is the only host on the other network, and it is labeled tftp application

Match the IPv6 address to the IPv6 address type. (Not all options are used) Global Unicast

2001:DB8:10::12 2001:DB8:A1:0B:C78::1

What is the protocol that is used to discover a physical address from a known logical address and what message type does it use?

ARP, broadcast

How does a Layer 3 switch differ from a Layer 2 switch?

An IP address can be assigned to a physical port of a Layer 3 switch. However, this is not supported in Layer 2 switches

Which group of IPv6 addresses cannot be allocated as a host source address?

FF00::8 *FF00::8 is a multi-cast address so it can't be a host.

Match the IPv6 address to the IPv6 address type. (Not all options are used) Multicast

FF02::2 FF02::1:FF3A:25C9

Which destination address is used in an ARP request frame?

FFFF.FFFF.FFFF *That is a broadcast for ARP

Which two statements describe the characteristics of fiber-optic cabling? (Choose Two)

Fiber-optic cabling does not conduct electricity Fiber-optic cabling is primarily used as backbone cabling

What is the correct order for PDU encapsulation?

Frame header > Network header > Transport Header > Data > Frame Trailer

What two protocols function at the internet layer? (Choose two)

ICMP IP

Which two components are configured via software in order for a PC to participate in a network environment? (Choose two.)

IP address subnet mask

Which statement describes the sequence of processes executed by a router when it receives a packet from a host to be delivered to a host on another network?

It de-encapsulates the packet, selects the appropriate path, and encapsulates the packet to forward it toward the destination host*

Which two reasons generally make DHCP the preferred method of assigning IP addresses to hosts on large networks? (Choose two.)

It eliminates most address configuration errors It reduces the burden on network support staff

What is an important function of the physical layer of the OSI model?

It encodes frames into electrical, optical, or radio wave signals.

What will a Layer 2 switch do when the destination MAC address of a received frame is not in the MAC table?

It forwards the frame out of all ports except for the port at which the frame was received

Which characteristics describe fiber optic cable? (Choose two.)

It is not affected by EMI or RFI It is the most expensive type of LAN cabling

What are two features of a physical, star network topology? (Choose two.)

It is straightforward to troubleshoot It is easy to add and remove end devices.

Refer to the exhibit. Consider the IP address configuration shown from PC1. What is a description of the default gateway address?

It is the IP address of the Router1 interface that connects the PC1 LAN to Router1.

Which address on a PC does not change, even if the PC is moved to a different network?

MAC address

Which technology provides a solution to IPv4 address depletion by allowing multiple devices to share one public IP address?

NAT (Network Address Translation)

In which default order will a router search for startup configuration information?

NVRAM, TFTP, setup mode

Refer to the exhibit. Which action will be successful?

PC2 can send a ping to 192.168.1.1 remember that pinging the anything would go through the switch where it states that Vlan1 is set as 192.168.1.1

38. Refer to the exhibit. Which IP addressing scheme should be changed?

Site 2

Match the phases to their correct stage in the router bootup process. (Not all options are used.)

Stage 1 - perform the post Stage 2 - load the bootstrap program Stage 3 - Locate and load the Cisco IOS Stage 4 - locate and load the configuration file the sequence is: Power on self test (post) Load and run bootstrap code Find IOS software Load IOS software Find Configuration file Load Configuration file Run So the short version is: POST --> Boostrap --> IOS --> Config --> Run PBICR (pretty boys invent cars for racing) ;-)

Refer to the exhibit. An administrator wants to change the name of a brand new switch, using the hostname command as shown. What prompt will display after the command is issued?

Switch(config)#? *The hostname did not change because there is a space so you will return a ?

Which three statements characterize the transport layer protocols? (Choose three.)

TCP and UDP port numbers are used by application layer protocols TCP uses windowing and sequencing to provide reliable transfer of data TCP is a connection-oriented protocol. UDP is a connectionless protocol

Fill in the blank. ________ is a best-effort, connectionless application layer protocol that is used to transfer files.

TFTP

What information does the loopback test provide?

The TCP/IP stack on the device is working correctly

Refer to the exhibit. An administrator is trying to configure the switch but receives the error message that is displayed in the exhibit. What is the problem?

The administrator must first enter privileged EXEC mode before issuing the command. >denotes user exec mode #denotes privileged exec mode

Refer to the exhibit. What is the significance of the asterisk (*) in the exhibited output?

The asterisk designates which file system is the default file system

A network administrator is making changes to the configuration of a router. After making the changes and verifying the results, the administrator issues the copy running-config startup-config command. What will happen after this command executes?

The configuration will load when the router is restarted.

Refer to the exhibit. A technician has configured a user workstation with the IP address and default subnet masks that are shown. Although the user can access all local LAN resources, the user cannot access any Internet sites by using either FQDN or IP addresses. Based upon the exhibit, what could account for this failure?

The default gateway is incorrect *it is listed as being on a different network.

What will happen if the default gateway address is incorrectly configured on a host?

The host cannot communicate with hosts in other networks.

Refer to the exhibit. Router R1 has two interfaces that were configured with correct IP addresses and subnet masks. Why does the show ip route command output not display any information about the directly connected networks??

The no shutdown command was not issued on these interfaces

What happens when part of an Internet television transmission is not delivered to the destination?

The transmission continues without the missing portion

What happens when part of an Internet VoIP transmission is not delivered to the destination?

The transmission continues without the missing portion.

What are the two main components of Cisco Express Forwarding (CEF)? (Choose two.)

adjacency tables forwarding information base (FIB)

Refer to the exhibit. Which area would most likely be an extranet for the company network that is shown?

area C * inventory and web servers

On a school network, students are surfing the web, searching the library database, and attending an audio conference with their sister school in Japan. If network traffic is prioritized with QoS, how will the traffic be classified from highest priority to lowest priority?

audio conference, database, HTTP

Three office workers are using the corporate network. The first employee uses a web browser to view a company web page in order to read some announcements. The second employee accesses the corporate database to perform some financial transactions. The third employee participates in an important live audio conference with other office workers in branch offices. If QoS is implemented on this network, what will be the priorities from highest to lowest of the different data types?

audio conference, financial transactions, web page

Fiber Optic

backbone cabling in an enterprise long-haul networks

Match each characteristic to the appropriate email protocol. (Not all options are used.) POP

does not require a centralized backup solution mail is deleted as it is downloaded desirable for an ISP or large business

Match each characteristic to the appropriate email protocol. (Not all options are used.) IMAP

downloads copies of email messages to the client original messages must be manually deleted requires a larger amount of disk space

What is contained in the trailer of a data-link frame?

error detection

Refer to the exhibit. A ping to PC3 is issued from PC0, PC1, and PC2 in this exact order. Which MAC addresses will be contained in the S1 MAC address table that is associated with the Fa0/1 port?

just PC0 and PC1 MAC addresses (this is because PC2 is on the same network as PC3)

Which two statements describe the functions or characteristics of ROM in a router? (Choose two.)

maintains instructions for POST diagnostics stores bootstrap program

Which of the following are primary functions of a router? (Choose two)

packet switching path selection

A network administrator needs to monitor network traffic to and from servers in a data center. Which features of an IP addressing scheme should be applied to these devices?

predictable static IP addresses for easier identification

What is a function of the data link layer?

provides for the exchange of data over a common local media

What types of addresses make up the majority of addresses within the /8 block IPv4 bit space?

public addresses

A host is accessing a Telnet server on a remote network. Which three functions are performed by intermediary network devices during this conversation? (Choose three.)

regenerating data signals applying security settings to control the flow of data notifying other devices when errors occur

A host is accessing an FTP server on a remote network. Which three functions are performed by intermediary network devices during this conversation? (Choose three.)

regenerating data signals applying security settings to control the flow of data notifying other devices when errors occur

A host is accessing a Web server on a remote network. Which three functions are performed by intermediary network devices during this conversation? (Choose three.)

regenerating data signals applying security settings to control the flow of data notifying other devices when errors occur

Which device should be used for enabling a host to communicate with another host on a different network?

router

ISOC, IANA, EIA, and IEEE represent __________ organizations which help to promote and maintain an open Internet.

standards

A technician uses the ping 127.0.0.1 command. What is the technician testing?

the TCP/IP stack on a network host *loopback address always tests host

A network technician is measuring the transfer of bits across the company backbone for a mission critical application. The technician notices that the network throughput appears lower than the bandwidth expected. Which three factors could influence the differences in throughput? (Choose three.)

the amount of traffic that is currently crossing the network the type of traffic that is crossing the network the latency that is created by the number of network devices that the data is crossing

What is the auto-MDIX feature on a switch?

the automatic configuration of an interface for a straight-through or a crossover Ethernet cable connection

Which parameter does the router use to choose the path to the destination when there are multiple routes available?

the lower metric value that is associated with the destination network

What happens when a switch receives a frame and the calculated CRC value is different than the value that is in the FCS field?

the switch drops the frame *CRC - cyclic redundancy check (most popular FCS or File Check Sequence)

What happens when part of an Internet radio transmission is not delivered to the destination?

the transmission continues without the missing portion

A frame is transmitted from one networking device to another. Why does the receiving device check the FCS field in the frame?

to check the frame for possible transmission errors

What is the effect of configuring the IPv6 unicast-routing command on a router?

to enable the router as an IPv6 router

A network administrator is upgrading a small business network to give high priority to real-time applications traffic. What two types of network services is the network administrator trying to accommodate? (Choose two.)

voice video the other options are not real time.

When is a dial-up connection used to connect to an ISP?

when a regular telephone line is used

Which two components are necessary for a wireless client to be installed on a WLAN? (Choose two.)

wireless NIC wireless client software