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Cisco IT Essentials 7.0 - Chapter 5: Networking Concepts Exam

Cisco IT Essentials 7.0 - Chapter 5: Networking Concepts Exam

Pregunta 1 de 44

1

A customer is considering a multipurpose device to create a home network. Which three devices are usually integrated into a multipurpose network device? (Choose three.)

Selecciona una o más de las siguientes respuestas posibles:

  • web server

  • switch

  • router

  • email server

  • wireless access point

  • print server

Explicación

Pregunta 2 de 44

1

Which two devices are commonly powered by PoE? (Choose two.)

Selecciona una o más de las siguientes respuestas posibles:

  • access point

  • core switch

  • IP phone

  • modular switch

  • router

Explicación

Pregunta 3 de 44

1

Which two types of signal interference are reduced more by STP than by UTP? (Choose two.)

Selecciona una o más de las siguientes respuestas posibles:

  • RFI

  • white noise

  • MDF

  • dispersion

  • EMI

Explicación

Pregunta 4 de 44

1

When would a printer be considered a network host?

Selecciona una de las siguientes respuestas posibles:

  • when it is connected to a switch

  • when it is connected to a workstation

  • when it is connected to a laptop

  • when it is connected to a PC

Explicación

Pregunta 5 de 44

1

Which technology is most often used to connect devices to a PAN?

Selecciona una de las siguientes respuestas posibles:

  • Bluetooth

  • fiber optic cabling

  • IEEE 802.11n wireless

  • coaxial cabling

Explicación

Pregunta 6 de 44

1

A network specialist has been hired to install a network in a company that assembles airplane engines. Because of the nature of the business, the area is highly affected by electromagnetic interference. Which type of network media should be recommended so that the data communication will not be affected by EMI?

Selecciona una de las siguientes respuestas posibles:

  • STP

  • coaxial

  • fiber optic

  • UTP

Explicación

Pregunta 7 de 44

1

How many devices can a Bluetooth device connect to simultaneously?

Selecciona una de las siguientes respuestas posibles:

  • 127

  • 7

  • 10

  • 24

  • 5

Explicación

Pregunta 8 de 44

1

Which network device makes forwarding decisions based on the destination MAC address that is contained in the frame?

Selecciona una de las siguientes respuestas posibles:

  • repeater

  • hub

  • switch

  • router

Explicación

Pregunta 9 de 44

1

What is a common function of a proxy server?

Selecciona una de las siguientes respuestas posibles:

  • to store frequently accessed web pages on the internal network

  • to control who is permitted to access the internal network

  • to detect malicious signatures by monitoring traffic that is entering the internal network

  • to provide access to a shared pool of configurable computing resources

Explicación

Pregunta 10 de 44

1

What is a characteristic of a WAN?

Selecciona una de las siguientes respuestas posibles:

  • It connects multiple networks that are geographically separated.

  • It spans across a campus or city to enable sharing of regional resources.

  • It is typically owned and managed by a single home or business.

  • It requires a wireless access point to connect users to the network.

Explicación

Pregunta 11 de 44

1

What is the correct order of the layers of the TCP/IP model from the top layer to the bottom?

Selecciona una de las siguientes respuestas posibles:

  • application, session, network, data link, physical

  • application, internet, network access, transport

  • network access, transport, internet, application

  • application, transport, internet, network access

Explicación

Pregunta 12 de 44

1

Which IEEE standard operates at wireless frequencies in both the 5 GHz and 2.4 GHz ranges?

Selecciona una de las siguientes respuestas posibles:

  • 802.11n

  • 802.11g

  • 802.11b

  • 802.11a

Explicación

Pregunta 13 de 44

1

Which pairs of wires change termination order between the 568A and 568B standards?

Selecciona una de las siguientes respuestas posibles:

  • green and orange

  • green and brown

  • blue and brown

  • brown and orange

Explicación

Pregunta 14 de 44

1

Which device provides wireless connectivity to users as its primary function?

Selecciona una de las siguientes respuestas posibles:

  • switch

  • router

  • access point

  • modem

Explicación

Pregunta 15 de 44

1

Which type of connection to the Internet is capable of the fastest transfer rates?

Selecciona una de las siguientes respuestas posibles:

  • ISDN

  • POTS

  • satellite

  • cable

  • fiber

Explicación

Pregunta 16 de 44

1

A user needs to access the Internet from home. Which device is needed if a user connects to an ISP through the telephone network?

Selecciona una de las siguientes respuestas posibles:

  • switch

  • server

  • DSL modem

  • wireless access point

Explicación

Pregunta 17 de 44

1

Which well-known port number is used by the DHCP (client) protocol?

Selecciona una de las siguientes respuestas posibles:

  • 67

  • 68

  • 20

  • 80

  • 53

Explicación

Pregunta 18 de 44

1

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?

Selecciona una de las siguientes respuestas posibles:

  • The data flow is being tracked based on the destination MAC address of the technician PC.

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

  • The data flow is being tracked based on the source IP address that is used by the PC of the technician.

  • The data flow is being tracked based on the destination IP address that is used by the PC of the technician.

Explicación

Pregunta 19 de 44

1

Which type of server would be used to keep a historical record of messages from monitored network devices?

Selecciona una de las siguientes respuestas posibles:

  • DHCP

  • DNS

  • print

  • authentication

  • syslog

Explicación

Pregunta 20 de 44

1

Which network device would be the most appropriate to provide stateful packet filtering, email filtering, and VPN services?

Selecciona una de las siguientes respuestas posibles:

  • router

  • endpoint management server

  • proxy server

  • UTM

  • TPM

Explicación

Pregunta 21 de 44

1

Which smart home wireless technology has an open standard that allows up to 232 devices to be connected?

Selecciona una de las siguientes respuestas posibles:

  • 802.11ac

  • 802.11n

  • Z-Wave

  • Zigbee

Explicación

Pregunta 22 de 44

1

Which network device allows administrators to remotely manage many devices through one dashboard interface?

Selecciona una de las siguientes respuestas posibles:

  • cloud-based network controller

  • Power over Ethernet

  • switch that supports VLANs

  • powerline networking

Explicación

Pregunta 23 de 44

1

Which internet connection type is an always-on service that uses radio signals sent from a tower to a receiver in a home or business?

Selecciona una de las siguientes respuestas posibles:

  • line of sight wireless

  • satellite

  • hotspot

  • cellular

Explicación

Pregunta 24 de 44

1

Which type of server would support the SMTP, POP, and IMAP protocols?

Selecciona una de las siguientes respuestas posibles:

  • DHCP

  • email

  • proxy

  • syslog

Explicación

Pregunta 25 de 44

1

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

Selecciona una de las siguientes respuestas posibles:

  • FTP

  • LDAP

  • SLP

  • SNMP

Explicación

Pregunta 26 de 44

1

A client packet is received by a server. The packet has a destination port number of 137. What service application is the client requesting?

Selecciona una de las siguientes respuestas posibles:

  • NetBIOS (NetBT)

  • SMB/CIFS

  • HTTPS

  • SLP

Explicación

Pregunta 27 de 44

1

A client packet is received by a server. The packet has a destination port number of 22. What service application is the client requesting?

Selecciona una de las siguientes respuestas posibles:

  • SSH

  • SMB/CIFS

  • HTTPS

  • SLP

Explicación

Pregunta 28 de 44

1

A client packet is received by a server. The packet has a destination port number of 143. What service application is the client requesting?

Selecciona una de las siguientes respuestas posibles:

  • IMAP

  • SMB/CIFS

  • HTTPS

  • SLP

Explicación

Pregunta 29 de 44

1

A client packet is received by a server. The packet has a destination port number of 161. What service application is the client requesting?

Selecciona una de las siguientes respuestas posibles:

  • SNMP

  • SMB/CIFS

  • HTTPS

  • SLP

Explicación

Pregunta 30 de 44

1

A client packet is received by a server. The packet has a destination port number of 23. What service application is the client requesting?

Selecciona una de las siguientes respuestas posibles:

  • Telnet

  • SMB/CIFS

  • HTTPS

  • SLP

Explicación

Pregunta 31 de 44

1

A client packet is received by a server. The packet has a destination port number of 389. What service application is the client requesting?

Selecciona una de las siguientes respuestas posibles:

  • LDAP

  • SMB/CIFS

  • HTTPS

  • SLP

Explicación

Pregunta 32 de 44

1

A client packet is received by a server. The packet has a destination port number of 25. What service application is the client requesting?

Selecciona una de las siguientes respuestas posibles:

  • SMTP

  • SMB/CIFS

  • HTTPS

  • SLP

Explicación

Pregunta 33 de 44

1

A client packet is received by a server. The packet has a destination port number of 389. What service application is the client requesting?

Selecciona una de las siguientes respuestas posibles:

  • LDAP

  • POP3

  • HTTP

  • NetBIOS (NetBT)

Explicación

Pregunta 34 de 44

1

A technician is searching through a storage locker and finds a PoE injector. What is the purpose of this device?

Selecciona una de las siguientes respuestas posibles:

  • It is a device that can be inserted in the middle of a cable run to add power.

  • It is a device that allows a network administrator to manage many remote networking devices from a central location.

  • It connects the network of a user to the digital infrastructure of a phone company, providing always-on service.

  • It connects a home or business network to a company that provides internet connectivity as well as television signals.

Explicación

Pregunta 35 de 44

1

A technician is searching through a storage locker and finds a managed switch. What is the purpose of this device?

Selecciona una de las siguientes respuestas posibles:

  • It connects multiple end devices and can be configured for VLANs and port security.

  • It is an all-in-one security appliance that includes IDS/IPS functionality as well as stateful firewall services.

  • It provides a wired or wireless connection between end devices, switches, and routers and in some cases, can regenerate weak signals.

  • It is placed between two or more networks and protects data and equipment from unauthorized access.

Explicación

Pregunta 36 de 44

1

A technician is searching through a storage locker and finds a Powerline networking connector. What is the purpose of this device?

Selecciona una de las siguientes respuestas posibles:

  • It is a device that uses existing electrical wiring to connect devices and sends data using specific frequencies.

  • It is placed between two or more networks and protects data and equipment from unauthorized access.

  • It is an all-in-one security appliance that includes IDS/IPS functionality as well as stateful firewall services.

  • It connects networks and forwards traffic to remote networks by using IP addressing information.

Explicación

Pregunta 37 de 44

1

A technician is searching through a storage locker and finds a cable modem. What is the purpose of this device?

Selecciona una de las siguientes respuestas posibles:

  • It connects a home or business network to a company that provides internet connectivity as well as television signals.

  • It is placed between two or more networks and protects data and equipment from unauthorized access.

  • It is an all-in-one security appliance that includes IDS/IPS functionality as well as stateful firewall services.

  • It connects networks and forwards traffic to remote networks by using IP addressing information.

Explicación

Pregunta 38 de 44

1

A technician is searching through a storage locker and finds an unmanaged switch. What is the purpose of this device?

Selecciona una de las siguientes respuestas posibles:

  • It is a device whose sole purpose is to connect end devices and to microsegment a LAN.

  • It is an all-in-one security appliance that includes IDS/IPS functionality as well as stateful firewall services.

  • It provides a wired or wireless connection between end devices, switches, and routers and in some cases, can regenerate weak signals.

  • It is placed between two or more networks and protects data and equipment from unauthorized access.

Explicación

Pregunta 39 de 44

1

A technician is searching through a storage locker and finds a DSL modem. What is the purpose of this device?

Selecciona una de las siguientes respuestas posibles:

  • It connects the network of a user to the digital infrastructure of a phone company, providing always-on service.

  • It is placed between two or more networks and protects data and equipment from unauthorized access.

  • It is an all-in-one security appliance that includes IDS/IPS functionality as well as stateful firewall services.

  • It connects networks and forwards traffic to remote networks by using IP addressing information.

Explicación

Pregunta 40 de 44

1

A technician is searching through a storage locker and finds an access point. What is the purpose of this device?

Selecciona una de las siguientes respuestas posibles:

  • It uses radio waves to provide network access to wireless devices.

  • It is an all-in-one security appliance that includes IDS/IPS functionality as well as stateful firewall services.

  • It provides a wired or wireless connection between end devices, switches, and routers and in some cases, can regenerate weak signals.

  • It is placed between two or more networks and protects data and equipment from unauthorized access.

Explicación

Pregunta 41 de 44

1

A technician is searching through a storage locker and finds a router. What is the purpose of this device?

Selecciona una de las siguientes respuestas posibles:

  • It connects networks and forwards traffic to remote networks by using IP addressing information.

  • It is an all-in-one security appliance that includes IDS/IPS functionality as well as stateful firewall services.

  • It provides a wired or wireless connection between end devices, switches, and routers and in some cases, can regenerate weak signals.

  • It is placed between two or more networks and protects data and equipment from unauthorized access.

Explicación

Pregunta 42 de 44

1

A technician is searching through a storage locker and finds a cloud-based network controller. What is the purpose of this device?

Selecciona una de las siguientes respuestas posibles:

  • It is a device that allows a network administrator to manage many remote networking devices from a central location.

  • It transfers small amounts of DC current over Ethernet cables to power low voltage devices such as wireless access points and surveillance cameras.

  • It provides a wired or wireless connection between end devices, switches, and routers and in some cases, can regenerate weak signals.

  • It is a device that can be inserted in the middle of a cable run to add power.

Explicación

Pregunta 43 de 44

1

A technician is searching through a storage locker and finds a firewall. What is the purpose of this device?

Selecciona una de las siguientes respuestas posibles:

  • It is placed between two or more networks and protects data and equipment from unauthorized access.

  • It is a device that can be inserted in the middle of a cable run to add power.

  • It transfers small amounts of DC current over Ethernet cables to power low voltage devices such as wireless access points and surveillance cameras.

  • It is a device that uses existing electrical wiring to connect devices and sends data using specific frequencies.

Explicación

Pregunta 44 de 44

1

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

Selecciona una de las siguientes respuestas posibles:

  • DNS

  • NetBIOS (NetBT)

  • POP3

  • IMAP

Explicación

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