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Networking+ > Chapter 7 > Flashcards

Chapter 7 Flashcards

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1
Q

An enterprise-wide VPN can include elements of both the client-to-site and site-to site
models.

A

True

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2
Q

After L2TP establishing a VPN tunnel, GRE is used to transmit L2TP data frames
through the tunnel.

A

False

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3
Q

PPP can support several types of Network layer protocols that might use the
connection.

A

True

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4
Q

A community cloud is a service shared between multiple organizations, but not
available publicly.

A

True

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5
Q

A Type 2 hypervisor installs on a computer before any OS, and is therefore called a
bare-metal hypervisor.

A

False

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6
Q

Office 365 is an example of an SaaS implementation with a subscription model

A

True

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7
Q 
Digital certificates are issued, maintained, and validated by an organization called a
certificate authority (CA).
A

True

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8
Q

The HTTPS (HTTP Secure) protocol utilizes the same TCP port as HTTP, port 80.

A

False

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9
Q

FTPS (FTP Security or FTP Secure) and SFTP (Secure FTP) are two names for the
same protocol.

A

False

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10
Q 
The Virtual Network Computing (VNC) application uses the cross-platform remote
frame buffer (RFB) protocol.
A

True

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11
Q

Which type of cloud service model involves hardware services that are provided
virtually, including network infrastructure devices such as virtual servers?

A

IaaS

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12
Q

What cloud service model involves providing applications through an online user
interface, providing for compatibility with a multitude of different operating systems
and devices?

A

SaaS

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13
Q

What type of scenario would be best served by using a Platform as a Service (PaaS)
cloud model?

A

A group of developers needs access to multiple operating systems and the
runtime libraries that the OS provides.

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14
Q

When using public and private keys to connect to an SSH server from a Linux
device, where must your public key be placed before you can connect?

A

In an authorization file on the host where the SSH server is.

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15
Q

The combination of a public key and a private key are known by what term below?

A

key pair

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16
Q

What security encryption protocol requires regular re-establishment of a connection
and can be used with any type of TCP/IP transmission?

A

IPsec

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17
Q

At what layer of the OSI model does the IPsec encryption protocol operate?

A

Network layer

18
Q

The PPP headers and trailers used to create a PPP frame that encapsulates Network
layer packets vary between 8 and 10 bytes in size due to what field?

A

FCS

19
Q

When using a site-to-site VPN, what type of device sits at the edge of the LAN and
establishes the connection between sites?

A

VPN gateway

20
Q

Amazon and Rackspace both utilize what virtualization software below to create
their cloud environments?

A

Citrix Xen

21
Q

What open-source VPN protocol utilizes OpenSSL for encryption and has the ability
to possibly cross firewalls where IPsec might be blocked?

A

OpenVPN

22
Q

VMware Player and Linux KVM are both examples of what type of hypervisor?

A

Type 2 hypervisor

23
Q

Which statement regarding the use of a bridged mode vNIC is accurate?

A

The vNIC will its own IP address on the physical LAN.

24
Q

When is it appropriate to utilize the NAT network connection type?

A

Whenever the VM does not need to be access at a known address by other
network nodes.

25
Q

By default, what network connection type is selected when creating a VM in
VMware, VirtualBox, or KVM?

A

NAT mode

26
Q

Which statement regarding the IKEv2 tunneling protocol is accurate?

A

IKEv2 offers fast throughput and good stability when moving between
wireless hotspots.

27
Q

The use of certificate authorities to associate public keys with certain users is known
by what term?

A

public-key infrastructure

28
Q

What is NOT a potential disadvantage of utilizing virtualization?

A

Virtualization software increases the complexity of backups, making
creation of usable backups difficult.

29
Q 
A vSwitch (virtual switch) or bridge is a logically defined device that operates at
what layer of the OSI model?
A

Layer 2

30
Q

Which of the following virtualization products is an example of a bare-metal
hypervisor?

A

Citrix XenServer

31
Q

In a software defined network, what is responsible for controlling the flow of data?

A

SDN controller

32
Q

What term is used to describe a space that is rented at a data center facility by a
service provider?

A

point of presence (PoP)

33
Q

Which of the following statements regarding the Point-to-Point (PPP) protocol is
NOT accurate?

A

PPP can support strong encryption, such as AH or ESP.

34
Q

Why is the telnet utility a poor choice for remote access to a device?

A

It provides poor authentication and no encryption.

35
Q

What statement regarding the SSH (Secure Shell) collection of protocols is accurate?

A

SSH supports port forwarding

36
Q

In order to generate a public and private key for use with SSH, what command line
utility should you use?

A

ssh-keygen

37
Q 
Regarding VNC (Virtual Network Computing or Virtual Network Connection), what
statement is accurate?
A

VNC is open source, allowing companies to develop their own software
based on VNC.

38
Q

Which file transfer protocol has no authentication or security for transferring files,
uses UDP, and requires very little memory to use?

A

Trivial FTP (TFTP)

39
Q

What special enterprise VPN supported by Cisco devices creates VPN tunnels
between branch locations as needed rather than requiring constant, static tunnels?

A

Dynamic Multipoint VPN

40
Q

Which of the following is NOT a task that a VPN concentrator is responsible for?

A

A VPN concentrator shuts down established connections with malicious
traffic occurs.

Networking+ (22 decks)

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