Which communication tool allows real-time collaboration?
instant messaging
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
A home user is looking for an ISP connection that provides high speed digital transmission over regular phone lines. What ISP connection type should be used?
DSL
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
Refer to the exhibit. From which location did this router load the IOS?
flash memory
Which connection provides a secure CLI session with encryption to a Cisco network device?
an SSH connection
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?
https://lh5.googleusercontent.com/-O63orRCtwmA/VV4lEUtCPVI/AAAAAAAAEGo/kOIYcj1eMg8/w308-h55-no/c
The administrator must first enter privileged EXEC mode before issuing the command
An administrator uses the Ctrl-Shift-6 key combination on a switch after issuing the ping command. What is the purpose of using these keystrokes?
to interrupt the ping process
What function does pressing the Tab key have when entering a command in IOS?
It completes the remainder of a partially typed word in a command
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)#?
Refer to the exhibit. A network administrator is configuring access control to switch SW1. If the administrator uses Telnet to connect to the switch, which password is needed to access user EXEC mode?
secretin
After making configuration changes, a network administrator issues a copy running-config startup-config command in a Cisco switch. What is the result of issuing this command?
The new configuration will be loaded if the switch is restarted
Refer to the exhibit. Which action will be successful?
PC2 can send a ping to 192.168.1.1
Which IPv4 address can be pinged to test the internal TCP/IP operation of a host?
127.0.0.1
What three application layer protocols are part of the TCP/IP protocol suite? (Choose three.)
DCHP
DNS
FTP
Which two protocols function at the internet layer? (Choose two.)
ICMP
IP
Which publicly available resources describe protocols, processes, and technologies for the Internet but do not give implementation details?
Request for Comments
Which address on a PC does not change, even if the PC is moved to a different network?
MAC Address
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
What will happen if the default gateway address is incorrectly configured on a host?
The host cannot communicate with hosts in other networks
What is an important function of the physical layer of the OSI model?
It encodes frames into electrical, optical, or radio wave signals
Which procedure is used to reduce the effect of crosstalk in copper cables?
twisting opposing circuit wire pairs together
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 contained in the trailer of a data-link frame?
error detection
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*
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
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.
What is the purpose of the routing process?
to select the paths that are used to direct traffic to destination networks
Which technology provides a solution to IPv4 address depletion by allowing multiple devices to share one public IP address?
NAT
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 of the following are primary functions of a router? (Choose two.)
packet switching & path selection
Which two statements correctly describe a router memory type and its contents? (Choose two.)
RAM is volatile and stores the running configuration.
ROM is nonvolatile and stores bootup information.
In which default order will a router search for startup configuration information?
NVRAM, TFTP, setup mode
What happens when part of an Internet VoIP transmission is not delivered to the destination?
The transmission continues without the missing portion.
Which three IP addresses are private ? (Choose three.)
10.172.168.1
172.20.4.4
192.168.5.254
How many bits make up the single IPv6 hextet :10CD:?
16
What is the effect of configuring the ipv6 unicast-routing command on a router?
to enable the router as an IPv6 router
Which group of IPv6 addresses cannot be allocated as a host source address?
FF00::/8
What is the purpose of ICMP messages?
to provide feedback of IP packet transmissions
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 ad
The default gateway address in incorrect
Which subnet would include the address 192.168.1.96 as a usable host address?
192.168.1.64/26
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
Refer to the exhibit. Which IP addressing scheme should be changed?
Site 2
Which two notations are useable nibble boundaries when subnetting in IPv6? (Choose two.)
/64 & /68
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
...
login block-for 60 attempts 5 within 60
A particular website does not appear to be responding on a Windows 7 computer. What command could the technician use to show any cached DNS entries for this web page?
ipconfig /displaydns
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
192.168.11.252
What two preconfigured settings that affect security are found on most new wireless routers? (Choose two.)
broadcast SSID
default administrator password
Which type of wireless security generates dynamic encryption keys each time a client associates with an AP?
WPA
is a best-effort, connectionless application layer protocol that is used to transfer files.
TFTP
Which two components are necessary for a wireless client to be installed on a WLAN? (Choose two.)
Wireless NIC & Wireless client software
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
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
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
When is a dial-up connection used to connect to an ISP?
...
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
audio conference, database, HTTP
During normal operation, from which location do most Cisco routers run the IOS?
RAM
Which connection provides a secure CLI session with encryption to a Cisco switch?
an SSH connection
Which keys act as a hot key combination that is used to interrupt an IOS process
...
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) # hostname HR Switc
Switch(config)#?
After making configuration changes on a Cisco switch, a network administrator issues a copy running-config startup-config command. What is the result of issuing this command?
The new configuration will be loaded if the switch is restarted
On which switch interface would an administrator configure an IP address so that the switch can be managed remotely?
VLAN 1
A technician uses the ping 127.0.0.1 command. What is the technician testing?
the TCP/IP stack on a network host*
What is the correct order for PDU encapsulation?
1. Frame Header
2. Network Header
3. Transport Header
4. Data
5. Frame Trailer
Which device should be used for enabling a host to communicate with another host on a different network
router
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 di
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
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.
...
to check the frame for possible transmission errors
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 switching method has the lowest level of latency?
fast-forward
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
Which two statements describe the functions or characteristics of ROM in a router? (Choose two.)
maintains instructions for POST diagnostics
stores bootstrap program
Which statement describes a characteristic of the Cisco router management ports?
A console port is not used for packet forwarding.
What happens when part of an Internet radio transmission is not delivered to the destination?
The transmission continues without the missing portion.
What is the dotted decimal representation of the IPv4 address 11001011.00000000.01110001.11010011?
203.0.113.211
Which three IP addresses are private ? (Choose three.)
10.20.30.1
172.30.5.3
192.168.5.5
What types of addresses make up the majority of addresses within the /8 block IPv4 bit space?
Public Addresses
Refer to the exhibit. What is the maximum TTL value that is used to reach the destination www.cisco.com??
13
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*
In a network that uses IPv4, what prefix would best fit a subnet containing 100 hosts?
/25
Which protocol supports rapid delivery of streaming media?
Real-Time Transport Protocol*
Why would a network administrator use the tracert utility?
to identify where a packet was lost or delayed on a network*
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
Which WLAN security protocol generates a new dynamic key each time a client establishes a connection with the AP?
WPA
Point-to-point communications where both devices can transmit and receive on the medium at the same time are known as
Full-Duplex
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
What is the purpose of having a converged network?
to reduce the cost of deploying and maintaining the communication infrastructure
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 thi
audio conference, financial transactions, web page
During normal operation, from which location do most Cisco switches and routers run the IOS?
RAM
What information does the loopback test provide?
The TCP/IP stack on the device is working correctly
What is a characteristic of the LLC sublayer?
It places information in the frame allowing multiple Layer 3 protocols to use the same network interface and media.
What method is used to manage contention-based access on a wireless network?
CSMA/CA
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.
Which destination address is used in an ARP request frame?
FFFF.FFFF.FFFF
Which frame forwarding method receives the entire frame and performs a CRC check to detect errors before forwarding the frame?
store-and-forward switching
What are the two main components of Cisco Express Forwarding (CEF)? (Choose two.)
Routing tables & ARP tables
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.
What happens when part of an Internet television transmission is not delivered to the destination?
The transmission continues without the missing portion.
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.
A user opens three browsers on the same PC to access www.cisco.com to search for certification course information. The Cisco web server sends a datagram as a reply to the request from one of the web browsers. Which information is used by the TCP/IP protoc
the destination port number
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.
h two components are configured via software in order for a PC to participate in a network environment? (Choose two.)
IP Address & Subnet Mask
What are three characteristics of multicast transmission? (Choose three.)
A single packet can be sent to a group of hosts.
Multicast transmission can be used by routers to exchange routing information.
Routers will not forward multicast addresses in the range of 224.0.0.0 to 224.0.0.255.
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 the subnet address for the address 2001:DB8:BC15:A:12AB::1/64?
2001:DB8:BC15:A::0
Which two tasks are functions of the presentation layer? (Choose two.)
Compression & encryption
What is the purpose of the network security authentication function?
to require users to prove who they are
Which field in an IPv4 packet header will typically stay the same during its transmission?
Destination Address
During data communications, a host may need to send a single message to a specific group of destination hosts simultaneously. This message is in the form of a ________ message
multicast
Open the PT activity. Perform the tasks in the activity instructions and then fill in the blank.
The Server0 message is .? "
Winner
A PC is configured to obtain an IP address automatically from network 192.168.1.0/24. The network administrator issues the arp -a command and notices an entry of 192.168.1.255 ff-ff-ff-ff-ff-ff. Which statement describes this entry?
This is a static map entry
What are the three primary functions provided by Layer 2 data encapsulation? (Choose three.)
data link layer addressing
detection of errors through CRC calculations
delimiting groups of bits into frames
Open the PT Activity. Perform the tasks in the activity instructions and then answer the question.
Which IPv6 address is assigned to the Serial0/0/0 interface on RT2?
2001:db8:abc:5::1 *
What must be configured to enable Cisco Express Forwarding (CEF) on most Cisco devices that perform Layer 3 switching?
CEF is enabled by default, so no configuration is necessary.
What is the purpose of adjacency tables as used in Cisco Express Forwarding (CEF)?
to maintain Layer 2 next-hop addresses
Which statement describes a characteristic of the network layer in the OSI model?
Its protocols specify the packet structure and processing used to carry the data from one host to another.
A user gets an IP address of 192.168.0.1 from the company network administrator. A friend of the user at a different company gets the same IP address on another PC. How can two PCs use the same IP address and still reach the Internet, send and receive ema
ISPs use Network Address Translation to change a user IP address into an address that can be used on the Internet.*
At a minimum, which address is required on IPv6-enabled interfaces?
link-local
Why does HTTP use TCP as the transport layer protocol?
because HTTP requires reliable delivery
What is the binary representation of 0xCA?
11001010
What is the valid most compressed format possible of the IPv6 address 2001:0DB8:0000:AB00:0000:0000:0000:1234?
2001:DB8:0:AB00::1234
What field content is used by ICMPv6 to determine that a packet has expired?
Hop Limit field
Which statement is true about variable-length subnet masking?
The size of each subnet may be different, depending on requirements.
Which firewall technique blocks incoming packets unless they are responses to internal requests?
stateful packet inspection
A network technician is investigating network connectivity from a PC to a remote host with the address 10.1.1.5. Which command issued on the PC will return to the technician the complete path to the remote host?
tracert 10.1.1.5
A network engineer is measuring the transfer of bits across the company backbone for a mission critical database application. The engineer notices that the network throughput appears lower than the bandwidth expected. Which three factors could influence t
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*
To prevent faulty network devices from carrying dangerous voltage levels, equipment must be correctly
Grounded
What device is commonly used to verify a UTP cable?
a cable tester
What needs to be checked when testing a UTP network cable?
Wire Map
Which function is provided by TCP?
Detection of missing packets
What does a router use to determine where to send data it receives from the network?
a routing table
Which router interface should be used for direct remote access to the router via a modem?
AUX port
A technician is configuring a router to allow for all forms of management access. As part of each different type of access, the technician is trying to type the command login. Which configuration mode should be entered to do this task?
any line configuration mode
Which statement is true about an interface that is configured with the IPv6 address command?
A link-local IPv6 address is automatically configured on the interface.
Refer to the exhibit. An administrator must send a message to everyone on the router A network. What is the broadcast address for network 172.16.16.0/22?
172.16.19.255
A network administrator is variably subnetting a given block of IPv4 addresses. Which combination of network addresses and prefix lengths will make the most efficient use of addresses when the need is for 2 subnets capable of supporting 10 hosts and 1 sub
10.1.1.128/28
10.1.1.144/28
10.1.1.160/29********
How many additional bits should be borrowed from a /26 subnet mask in order to create subnets for WAN links that need only 2 useable addresses?
4
An administrator issued the service password-encryption command to apply encryption to the passwords configured for enable password, vty, and console lines. What will be the consequences if the administrator later issues the no service password-encryption
It will not reverse any encryption.
A topology influences the type of network framing and media access control that will be used
Logical
What are two features of ARP? (Choose two.)
If a host is ready to send a packet to a local destination device and it has the IP address but not the MAC address of the destination, it generates an ARP broadcast.
If a device receiving an ARP request has the destination IPv4 address, it responds with an ARP reply.
What are two examples of the cut-through switching method? (Choose two.)
fast-forward switching
fragment-free switching