rc

1. Which two traffic types use the Real-Time Transport Protocol (RTP)? (Choose two.)

video, voice

2. Which wireless technology has low-power and data rate requirements making it popular in home automation applications?

2. ¿Qué tecnología inalámbrica tiene requisitos de baja potencia y velocidad de datos que la hacen popular en las aplicaciones de automatización del hogar?

Which two traffic types use the Real-Time Transport Protocol (RTP)? (Choose two.)

video, voice

Which wireless technology has low-power and data rate requirements making it popular in home automation applications?

ZigBee

Which layer of the TCP/IP model provides a route to forward messages through an internetwork?

internet

Which type of server relies on record types such as A, NS, AAAA, and MX in order to provide services?

DNS

What are proprietary protocols?

protocols developed by organizations who have control over their definition and operation

What service is provided by DNS?

Resolves domain names, such as cisco.com, into IP addresses.

A client packet is received by a server. The packet has a destination port number of 110. What service is the client requesting?

POP3

What command can be used on a Windows PC to see the IP configuration of that computer?

ipconfig

A wired laser printer is attached to a home computer. That printer has been shared so that other computers on the home network can also use the printer. What networking model is in use?

peer-to-peer (P2P)

What characteristic describes a virus?

malicious software or code running on an end device

Match the description to the IPv6 addressing component. (Not all options are used.)

org ident subnets - subnetID, assigned by provider - global routing prefix, equivalent to host part of ipv4 - interfaceID

Refer to the exhibit. If Host1 were to transfer a file to the server, what layers of the TCP/IP model would be used?

application, transport, Internet, and network access layers

Match the characteristic to the forwarding method. (Not all options are used.)

store - stores entire frame, checks 2x, cut - no latency, runt frames, begins

Refer to the exhibit. The IP address of which device interface should be used as the default gateway setting of host H1?

G0/0

What service is provided by Internet Messenger?

An application that allows real-time chatting among remote users.

Refer to the exhibit. Match the network with the correct IP address and prefix that will satisfy the usable host addressing requirements for each network.

A-25, B-26, C-27, D-30

Refer to the exhibit. Which protocol was responsible for building the table that is shown?

ARP

Which two factors may interfere with the copper cabling and result in signal distortion and data corruption? (Choose two.)

RFI, EMI

A host is trying to send a packet to a device on a remote LAN segment, but there are currently no mappings in the ARP cache. How will the device obtain a destination MAC address?

It will send an ARP request for the MAC address of the default gateway.

Which two functions are performed at the MAC sublayer of the OSI Data Link Layer to facilitate Ethernet communication? (Choose two.)

integrates Layer 2 flows between 10 Gigabit Ethernet over fiber and 1 Gigabit Ethernet over copper, implements CSMA/CD over legacy shared half-duplex media

A client packet is received by a server. The packet has a destination port number of 53. What service is the client requesting?

DNS

A network administrator is adding a new LAN to a branch office. The new LAN must support 25 connected devices. What is the smallest network mask that the network administrator can use for the new network?

255.255.255.224

What characteristic describes a Trojan horse?

malicious software or code running on an end device

What service is provided by HTTPS?

Uses encryption to secure the exchange of text, graphic images, sound, and video on the web.

A technician with a PC is using multiple applications while connected to the Internet. How is the PC able to keep track of the data flow between multiple application sessions and have each application receive the correct packet flows?

The data flow is being tracked based on the source port number that is used by each application.

A network administrator is adding a new LAN to a branch office. The new LAN must support 61 connected devices. What is the smallest network mask that the network administrator can use for the new network?

255.255.255.192

What characteristic describes a DoS attack?

an attack that slows or crashes a device or network service

Match the application protocols to the correct transport protocols

TCP - FTP HTTP SMTP, UDP - DHCP, TFTP

What service is provided by SMTP?

Allows clients to send email to a mail server and the servers to send email to other servers.

Which scenario describes a function provided by the transport layer?

A student has two web browser windows open in order to access two web sites. The transport layer ensures the correct web page is delivered to the correct browser window.

Refer to the exhibit. Host B on subnet Teachers transmits a packet to host D on subnet Students. Which Layer 2 and Layer 3 addresses are contained in the PDUs that are transmitted from host B to the router?

Layer 2 destination address = 00-00-0c-94-36-ab, Layer 2 source address = 00-00-0c-94-36-bb, Layer 3 destination address = 172.16.20.200, Layer 3 source address = 172.16.10.200

What does the term “attenuation” mean in data communication?

loss of signal strength as distance increases

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.

Which two protocols operate at the top layer of the TCP/IP protocol suite? (Choose two.)

POP, DNS

What three requirements are defined by the protocols used in network communcations to allow message transmission across a network? (Choose three.)

message size. message encoding, delivery options

What are two characteristics of IP? (Choose two.)

does not require a dedicated end-to-end connection, operates independently of the network media

What three network characteristics are described in this scenario? (Choose three.)

security. quality of service, fault tolerance

What are two common causes of signal degradation when using UTP cabling? (Choose two.)

improper termination, low-quality cable or connectors

Which subnet would include the address 192.168.1.96 as a usable host address?

192.168.1.64/26

On the basis of the output, which two statements about network connectivity are correct? (Choose two.)

There are 4 hops between this device and the device at 192.168.100.1., There is connectivity between this device and the device at 192.168.100.1.

Which two statements describe how to assess traffic flow patterns and network traffic types using a protocol analyzer? (Choose two.)

Capture traffic during peak utilization times to get a good representation of the different traffic types., Perform the capture on different network segments.

What is the consequence of configuring a router with the ipv6 unicast-routing global configuration command?

The IPv6 enabled router interfaces begin sending ICMPv6 Router Advertisement messages.

Which three layers of the OSI model map to the application layer of the TCP/IP model? (Choose three.)

application, session, presentation

Refer to the exhibit. If PC1 is sending a packet to PC2 and routing has been configured between the two routers, what will R1 do with the Ethernet frame header attached by PC1?

remove the Ethernet header and configure a new Layer 2 header before sending it out S0/0/0

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

The host cannot communicate with hosts in other networks.

What are two features of ARP?

it generates an ARP broadcast., it responds with an ARP reply.

A network administrator is adding a new LAN to a branch office. The new LAN must support 90 connected devices. What is the smallest network mask that the network administrator can use for the new network?

255.255.255.128

What are two ICMPv6 messages that are not present in ICMP for IPv4?

Router Advertisement, Neighbor Solicitation

A client packet is received by a server. The packet has a destination port number of 80. What service is the client requesting?

HTTP

What is an advantage for small organizations of adopting IMAP instead of POP?

Messages are kept in the mail servers until they are manually deleted from the email client.

A technician can ping the IP address of the web server of a remote company but cannot successfully ping the URL address of the same web server. Which software utility can the technician use to diagnose the problem?

nslookup

Which two functions are performed at the LLC sublayer of the OSI Data Link Layer to facilitate Ethernet communication?

enables IPv4 and IPv6 to utilize the same physical medium, places information in the Ethernet frame that identifies which network layer protocol is being encapsulated by the frame

The global configuration command ip default-gateway 172.16.100.1 is applied to a switch. What is the effect of this command?

The switch can be remotely managed from a host on another network.

What happens when the transport input ssh command is entered on the switch vty lines?

Communication between the switch and remote users is encrypted.

Match the type of threat with the cause.

maintenance - poor handling of

A disgruntled employee is using some free wireless networking tools to determine information about the enterprise wireless networks. This person is planning on using this information to hack the wireless network. What type of attack is this?

reconnaissance

What service is provided by HTTP?

A basic set of rules for exchanging text, graphic images, sound, video, and other multimedia files on the web.

A client packet is received by a server. The packet has a destination port number of 67. What service is the client requesting?

DHCP

What are two problems that can be caused by a large number of ARP request and reply messages?

The ARP request is sent as a broadcast, and will flood the entire subnet., All ARP request messages must be processed by all nodes on the local network.

Which three Windows CLI commands and utilities will provide the necessary information?

ping, ipconfig, nslookup

During the process of forwarding traffic, what will the router do immediately after matching the destination IP address to a network on a directly connected routing table entry?

switch the packet to the directly connected interface

What characteristic describes antispyware?

applications that protect end devices from becoming infected with malicious software

A network administrator needs to keep the user ID, password, and session contents private when establishing remote CLI connectivity with a switch to manage it. Which access method should be chosen?

SSH

What are the two most effective ways to defend against malware?

Update the operating system and other application software., Install and update antivirus software.

Which type of security threat would be responsible if a spreadsheet add-on disables the local software firewall?

Trojan horse

Which frame field is created by a source node and used by a destination node to ensure that a transmitted data signal has not been altered by interference, distortion, or signal loss?

frame check sequence field

The new LAN must support 4 connected devices. What is the smallest network mask that the network administrator can use for the new network?

255.255.255.248

What service is provided by POP3?

Retrieves email from the server by downloading the email to the local mail application of the client.

What two security solutions are most likely to be used only in a corporate environment?

virtual private networks, intrusion prevention systems

What characteristic describes antivirus software?

applications that protect end devices from becoming infected with malicious software

What mechanism is used by a router to prevent a received IPv4 packet from traveling endlessly on a network?

It decrements the value of the TTL field by 1 and if the result is 0, it discards the packet and sends a Time Exceeded message to the source host.

A client packet is received by a server. The packet has a destination port number of 69. What service is the client requesting?

TFTP

An administrator defined a local user account with a secret password on router R1 for use with SSH. Which three additional steps are required to configure R1 to accept only encrypted SSH connections?

Configure the IP domain name on the router., Generate the SSH keys., Enable inbound vty SSH sessions.

Which two functions are performed at the MAC sublayer of the OSI Data Link Layer to facilitate Ethernet communication?

places information in the Ethernet frame that identifies which network layer protocol is being encapsulated by the frame, implements trailer with frame check sequence for error detection

An IPv6 enabled device sends a data packet with the destination address of FF02:2. What is the target of this packet?

all IPv6 configured routers on the local link

What are the three parts of an IPv6 global unicast address? (Choose three.)

subnet ID, global routing prefix, interface ID

A network administrator is designing the layout of a new wireless network. Which three areas of concern should be accounted for when building a wireless network?

interference, security, coverage area

A new network administrator has been asked to enter a banner message on a Cisco devi

Se le ha pedido a un nuevo administrador de red que ingrese un mensaje de banner en un dispositivo Cisco

ce. What is the fastest way a network administrator could test whether the banner is properly configured?

Exit privileged EXEC mode and press Enter.

What method is used to manage contention-based access on a wireless network?

CSMA/CA

What is a function of the data link layer?

provides for the exchange of frames over a common local media

What is the purpose of the TCP sliding window?

to request that a source decrease the rate at which it transmits data

What characteristic describes spyware?

software that is installed on a user device and collects information about the user

Which switching method drops frames that fail the FCS check?

store-and-forward switching

Which range of link-local addresses can be assigned to an IPv6-enabled interface?

FE80:/10

What service is provided by FTP?

Allows for data transfers between a client and a file server.

A user is attempting to access http://www.cisco.com/ without success. Which two configuration values must be set on the host to allow this access?

DNS server, default gateway

Which two statements accurately describe an advantage or a disadvantage when deploying NAT for IPv4 in a network? (Choose two.)

NAT introduces problems for some applications that require end-to-end connectivity., NAT provides a solution to slow down the IPv4 address depletion.

What would be the interface ID of an IPv6 enabled interface with a MAC address of 1C-6F-65-C2-BD-F8 when the interface ID is generated by using the EUI-64 process?

1E6F: 65FF: FEC2: BDF8

Refer to the exhibit. PC1 issues an ARP request because it needs to send a packet to PC2. In this scenario, what will happen next?

PC2 will send an ARP reply with its MAC address., PC2 will send an ARP reply with the PC2 MAC address.

What service is provided by BOOTP?

Legacy application that enables a diskless workstation to discover its own IP address and find a BOOTP server on the network.

What characteristic describes adware?

software that is installed on a user device and collects information about the user

When a switch configuration includes a user-defined error threshold on a per-port basis, to which switching method will the switch revert when the error threshold is reached?

store-and-forward

Match a statement to the related network model. p2p network, ptp app

no dedicated server, per requiest basis, 2-background serfvice specific user interface

What are two primary responsibilities of the Ethernet MAC sublayer?

accessing the media, data encapsulation

Refer to the exhibit. What three facts can be determined from the viewable output of the show ip interface brief command?

The switch can be remotely managed., One device is attached to a physical interface., The default SVI has been configured.

Match each type of frame field to its function. address, error, type, frame start

destination, damaged, identufy Layer 3 protocol, tipalolWhat is the subnet ID associated with the IPv6 address 2001: DA48: FC5: A4:3D1B: 1/64?

Match the firewall function to the type of threat protection it provides to the network. application filtering, packet filtering, stateful packet inspection, URL filtering,

packet filtering – prevents acces on IP or MAC URL filtering – prevents access to websites network stateful packet inspection – prevents unsolicited incoming sessions application filtering – prevents access by port number

Users are reporting longer delays in authentication and in accessing network resources during certain time periods of the week. What kind of information should network engineers check to find out if this situation is part of a normal network behavior?

the network performance baseline

How does the service password-encryption command enhance password security on Cisco routers and switches?

It encrypts passwords that are stored in router or switch configuration files.

Which two statements are correct in a comparison of IPv4 and IPv6 packet headers?

The Source Address field name from IPv4 is kept in IPv6., The Time-to-Live field from IPv4 has been replaced by the Hop Limit field in IPv6.

A network administrator wants to have the same network mask for all networks at a particular small site. The site has the following networks and number of devices:

255.255.255.224

What characteristic describes identity theft?

the use of stolen credentials to access private data

he new LAN must support 200 connected devices. What is the smallest network mask that the network administrator can use for the new network?

255.255.255.0

What are three commonly followed standards for constructing and installing cabling?

cable lengths, pinouts, connector types

Refer to the exhibit. What is wrong with the displayed termination?

The untwisted length of each wire is too long.

Match the characteristic to the category. ip adress, mac adress

layer3 , devided in net and unique, 32/128 2-layer2, oui, 48 bit

he packet has a destination port number of 143. What service is the client requesting?

IMAP

What are two characteristics shared by TCP and UDP?

port numbering, use of checksum

Which two network addresses can be assigned to the network containing 10 hosts? Your answers should waste the fewest addresses, not reuse addresses that are already assigned, and stay within the 10.18.10.0/24 range of addresses.

10.18.10.208/28,10.18.10.224/28

A client packet is received by a server. The packet has a destination port number of 21. What service is the client requesting?

FTP

What attribute of a NIC would place it at the data link layer of the OSI model?

MAC address

The new LAN must support 10 connected devices. What is the smallest network mask that the network administrator can use for the new network?

255.255.255.240

What technique is used with UTP cable to help protect against signal interference from crosstalk?

twisting the wires together into pairs

Which connector is used with twisted-pair cabling in an Ethernet LAN?

RJ 45 (true answer)

The packet has a destination port number of 22. What service is the client requesting?

SSH

What characteristic describes an IPS?

a network device that filters access and traffic coming into a network

What service is provided by DHCP?

Dynamically assigns IP addresses to end and intermediary devices.

Dynamically assigns IP addresses to end and intermediary devices.

2 802 header. frame check seq, destination mac 3 ttl, source ip adress 4 ack num, destination port number

Which wireless technology has low-power and low-data rate requirements making it popular in IoT environments?

Zigbee

What two ICMPv6 message types must be permitted through IPv6 access control lists to allow resolution of Layer 3 addresses to Layer 2 MAC addresses?

neighbor solicitations, neighbor advertisements

A client is using SLAAC to obtain an IPv6 address for its interface. After an address has been generated and applied to the interface, what must the client do before it can begin to use this IPv6 address?

It must send an ICMPv6 Neighbor Solicitation message to ensure that the address is not already in use on the network.

An organization is assigned an IPv6 address block of 2001: db8:0: ca00:/56. How many subnets can be created without using bits in the interface ID space?

256

What subnet mask is needed if an IPv4 network has 40 devices that need IP addresses and address space is not to be wasted

255.255.255.192

What is a benefit of using cloud computing in networking?

Network capabilities are extended without requiring investment in new infrastructure, personnel, or software.

Which two statements are correct about MAC and IP addresses during data transmission if NAT is not involved? (Choose two.)

Destination IP addresses in a packet header remain constant along the entire path to a target host., Destination and source MAC addresses have local significance and change every time a frame goes from one LAN to another.

main characteristic of the data link layer?

It shields the upper layer protocol from being aware of the physical medium to be used in the communication.

What are three characteristics of the CSMA/CD process?

A device listens until the media is not busy., detecting a collision, hosts can attempt to resume transmission after a random time delay has expired., All of the devices

Which information does the show startup-config command display?

the contents of the saved configuration file in the NVRAM

Which two commands can be used on a Windows host to display the routing table?

route print, netstat -r

What are two functions that are provided by the network layer?

directing data packets to destination hosts on other networks, providing end devices with a unique network identifier

Which two statements describe features of an IPv4 routing table on a router?

Directly connected interfaces will have two route source codes in the routing table: C and S., If a default static route is configured in the router, an entry will be included in the routing table with source code S.

What characteristic describes a VPN?

a tunneling protocol that provides remote users with secure access into the network of an organization

Why would a Layer 2 switch need an IP address?

to enable the switch to be managed remotely

A user sends an HTTP request to a web server on a remote network. During encapsulation for this request, what information is added to the address field of a frame to indicate the destination?

the MAC address of the default gateway

What is an advantage to using a protocol that is defined by an open standard?

It encourages competition and promotes choices.

What two pieces of information are displayed in the output of the show ip interface brief command?

IP addresses, Layer 1 statuses

Which tool should the technician use with administrator privileges in order to locate where the issue is in the network?

tracert

Which value, that is contained in an IPv4 header field, is decremented by each router that receives a packet?

Time-to-Live

Which two issues should be considered before implementing fiber optic media?

Fiber optic cabling requires different termination and splicing expertise from what copper cabling requires., Fiber optic cabling requires different termination and splicing expertise from what copper cabling requires.

At what point would a router, which is in the path to the destination device, stop forwarding the packet?

when the value in the TTL field reaches zero