Ch.7 Quiz CTS1134, Chapter 7, Ch 8 Network, Ch 8, Networking Quiz: Ch. 08

The SSH service listens on what TCP port?

22

How many subnets can a /48 site prefix support?

65,536

When using IPv6, what would a /64 network likely be assigned to?

A smaller organization or business

What are the two AAA services?

RADIUS AND TACACS+

An encryption key generation and management scheme used by 802.11i

TKIP

A /24 CIDR is equivalent to a 255.255.255.0 subnet mask

True

Only Class B and Class C networks can be subnetted.

false

How is GRE used by the PPP protocol

it encapsulates point to point protocol frames

On a Cisco switch, what would the security association identifier be for VLAN 13?

100,013

What two different types of encryption can be used by IPSec during data transfer?

AH, ESP

The original version of the Secure Hashing Algorithm (SHA) was developed by the NSA, and used a hash of what length?​

160

An IP address of 192.168.18.73/28 has what network ID?

192.168.18.64

How often should administrators and network users be required to change their password?

60 days

What protocol is a Data Link Layer protocol designed to connect WAN endpoints in a direct connection, such as when a client computer connects to a server at an ISP using a dial-up or DSL connection and modem?

SLIP

You are working on a Cisco switch and need to learn what VLANs exist on the switch. Which command will list the current VLANs recognized by the switch?

Show vlan

A variant of TLS is ___________________, which provides authentication like SSL/TLS, but does not require a certificate for each user.​

TTLS

In Kerberos, a temporary set of credentials that a client uses to prove that its identity has been validated is known as a _____________.

Ticket

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

Trivial FTP (TFTP)

What security principle provides proof of delivery and proof of the sender's identity?​

non-repudiation

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

ssh-keygen

In order to identify the transmissions that belong to each VLAN, a switch will add a tag to Ethernet frames that identifies the VLAN through which they arrive at the switch.

true

Network segmentation at Layer 2 of the OSI model is accomplished using VLANs.

true

What IEEE standard specifies how VLAN information appears in frames and how switches interpret that information?

802.1Q

A _________________ is a service that is shared between multiple organizations, but not available publicly.

Community Cloud

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

False

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

Iaas

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?

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

What does the VLAN trunk protocol(VTP) do?

It shares VLAN database information amongst switches that participate.

In Kerberos terminology, the server issues keys to clients during initial client authentication.

KDC

In the context of IPsec, a type of encryption that provides authentication of the IP packet's data payload through public key techniques

KDC

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

NAT mode

If the EUI-64 standard is used, what part of an IPv6 address is affected?

The last four blocks of the address.

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

Citrix XenServer

The _________________ cloud service model provides virtual environments online that can be tailored to the needs of developers.

Paas

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

SDN controller

A service model in which applications are provided through an online user interface and are compatible with a multitude of devices and operating systems.

Saas

A Layer 2 communications protocol that enables a workstation to connect to a server using a serial connection such as dial-up or DSL. It can support multiple Network layer protocols and can encrypt transmissions.

TKIP

Which of the following statements regarding IPv6 subnetting is NOT accurate?

The largest IPv6 subnet capable of being created is a /64.

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

OpenVPN

An interface that manages traffic from multiple VLANs is known by what term?

aggregation port

A native VLAN mismatch occurs when two access ports that are connected to each other are both tagging traffic with different VLAN IDs.

false

All that is needed to provide communication between two VLANs is a DHCP relay agent.

false

An unmanaged switch can still support the creation of VLANs, provided there is an interface for configuration.

false

Network segmentation decreases both performance and security on a network.

false

​SHA-2 is an encryption algorithm method that is used by SSH. t/f

false

The key management phase of IPSec is reliant on which two services ?

internet security association and key management protocol IKE

On certain Cisco products, what command can be used to create and send helper messages that support several types of UDP traffic, including DHCP, TFTP, DNS, and TACACS+?

ip helper-address

Describe the TLS/SSL handshake process as initiated by a web client accessing ​a secure website.

it allows the client and server to introduce themselves to each other and establishes terms for how they will securely exchange data.

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

key pair

Subtracting an interesting octet value from 256 yields what number?

magic number

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

public-key infrastructure

A subnet of 255.255.248.0 can be represented by what CIDR notation?

/21

You have been tasked with the creation and design of a network that must support a minimum of 5000 hosts. Which network accomplishes this goal?

10.3.0.0/1

You have been tasked with the creation and design of a network that must support a minimum of 5000 hosts. Which network accomplishes this goal?

10.3.0.0/19

A network with 10 bits remaining for the host portion will have how many usable host addresses?

1022

How many /64 subnets can be created within a /56 prefix?

255

What subnet mask can be used to segment the 172.16.0.0 network to allow for a minimum of 6 subnets while maximizing the number of hosts per subnet?

255.255.224.0

What subnet mask can be used to segment the 172.16.0.0 network to allow for a minimum of 6 subnets while maximizing the number of hosts per subnet?

255.255.248.0

A network with a CIDR notation (prefix) of /26 would have what subnet mask?

255.255.255.192

A network with a CIDR notation of /26 would have what subnet mask?

255.255.255.192

What two key lengths are the most popular for the SHA-2 hashing algorithm?​

256 and 512

Given a host IP address of 172.16.1.154 and a subnet mask of 255.255.254.0, what is the network ID for this host?

172.16.0.0

How large is the 802.1Q tag that is added to an Ethernet frame when using VLANs?

4 bytes

What is the maximum number of host IP addresses that can exist in a Class B network?

65,534

In an IPv6 address, what do the first four blocks or 64 bits of the address represent?

The site prefix or global routing prefix.

When using IPv6, what would a /64 network likely be assigned to?

A smaller organization or business.

IPv6 addressing does not utilize classful addressing, therefore every IPv6 address is classless.

True

In order to identify the transmissions that belong to each VLAN, a switch will add a tag to Ethernet frames that identifies the port through which they arrive at the switch.

True

Network segmentation at Layer 2 of the OSI model is accomplished using VLANs.

True

Windows, UNIX, Linux, and Mac OS clients are all capable of connecting to a VPN using PPTP. T/F

True

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

Citrix Xen

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

Dynamic Multipoint VPN

​What protocol only provides the framework for authenticating clients and servers, but relies on other encryption and authentication schemes to verify the credentials of clients or servers?

EAP

Which of the following suggestions can help prevent VLAN hopping attacks on a network?

Disable auto trunking and move native VLANs to unused VLANs

Which of the following suggestions can help prevent VLAN hopping attacks on a network?

Disable auto trunking and move native VLANs to unused VLANs.

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

IaaS

A service model in which hardware services are provided virtually, including network infrastructure devices such as virtual servers.

Iaas

When an 802.1Q tag is added to an Ethernet frame, where is it placed?

It is inserted between the source address and the Ethernet type field.

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

Type 2 hypervisor

When dealing with a Cisco switch, what is NOT one of the pre-established VLANs?

VLAN 1001

In an IPv6 address, what do the first four blocks or 64 bits of the address represent?

a site prefix or global routing prefix

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

Network layer

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

Network layer

With VTP, where is the VLAN database stored?

On the switch that is known as the stack master, configured as a VTP server.

With VTP, where is the VLAN database stored?

On the switch that is known as the stack master.

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

SSH supports port forwarding.

What protocol is a Microsoft proprietary protocol first available in Windows Vista?

SSTP

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

SaaS

What are the three tenets of the CIA triad, and how do they provide assurances that data will be protected?

confidentiality, integrity, availability

A SecurID key chain fob from RSA security generates a password that changes how often?

every 60 seconds

An interface that manages traffic from multiple VLANs is known by what term?

trunk port

If the EU-64 standard is used, what part of an IPv6 address is affected?

the last four blocks of the address

Describe the three way handshake process as used by CHAP

the server sends the client a randomly generated string of characters. The client sends a new string inresponse to theserver while the server concatenates the users password with a challenge and created it own string.

What authentication protocol sends authentication information in cleartext without encryption?

PAP

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

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

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

Saas

What encryption protocol was designed as more of an integrity check for WEP transmissions rather than a sophisticated encryption protocol?

TKIP

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

True

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

True

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

True

Digital certificates are issued, maintained, and validated by an organization called a certificate authority (CA). T/F

True

Office 365 is an example of an SaaS implementation with a subscription model. T/F

True

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

True

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

True

PPP can support several types of Network layer protocols that might use the connection.​ T/F

True

What is NOT one of the ways in which networks are commonly segmented?

by device manufacturer

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

point of presence (PoP)

Which of the following terms is commonly used to describe a VLAN configuration in which one router connects to a switch that supports multiple VLANs?

router-on-a-stick

Which of the following terms is commonly used to describe a VLAN configuration in which one router interface connects to a switch and serves as the gateway for multiple VLANs?

router-on-a-stick

You are working on a Cisco switch and need to learn what VLANs exist on the switch. Which command will list the current VLANs recognized by the switch?

show vlan

A /24 CIDR block (prefix) is equivalent to a 255.255.255.0 subnet mask.

true

A /24 CIDR block is equivalent to a 255.255.255.0 subnet mask.

true

By default, the native VLAN is the same as the default VLAN.

true

IPv6 addressing does not utilize classful addressing, therefore every IPv6 address is classless.

true

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

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

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

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

In the contest of IPsec, a type of encryption that provides authentication of the IP packet's data payload through public key techniques. In add, it also encrypts the entire IP packed for added security.

ESP

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

False

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

False

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

False

All that is needed to provide communications between two VLANs is a DHCP relay agent

False

Network segmentation decreases both performance and security on a network.

False

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

False

The MD5 hashing algorithm is not susceptible to the possibility of hash collisions.​ T/F

False

One of two services in the key management phase of creating a secure IPsec connection. It negotiates the exchange of keys, including authentication of the keys. It uses UDP and usually runs on port 500

IKE

Which statement regarding the IKEv2 tunneling protocol is accurate?

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

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

It provides poor authentication and no encryption.

What does the VLAN Trunk Protocol (VTP) do?

It shares VLAN database information amongst switches that participate.

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

Key Pair

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

Layer 2

Subtracting an interesting octet value from 256 yields what number?

Magic number

How many subnets can a /48 site prefix support?

65,536 subnets

What command will set the native VLAN on a Juniper switch port?

set native-vlan-id

When using public and private keys to connect to an SSH server, where must your public key be placed?

​In the authorized keys file

An authentication protocol that operates over PPP and also encrypts usernames and passwords for transmission.

CHAP

Digital certificates are issued by organizations known as what term?

Certification authorities

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

Citrix Xen

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

IPSec

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

IPsec

When PPP is used over an Ethernet network, it is known as ________________.​

PPoe

A service model in which various platforms are provide virtually, enabling developer s to build and test application within virtual, online environments tailored to the specific needs of a project.

Paas

Which of the following statements regarding IPv6 subnetting is NOT accurate?

The largest IPv6 subnet capable of being created is /64

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

VPN gateway

What is NOT a potential disadvantage of utilizing virtualization?

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

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

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

By default, when using classful addressing, how many bits exist in the host portion of a Class A address?

24

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?

FCS

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

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

The Virtual Network Computing (VNC) application uses the cross-platform remote frame buffer (RFB) protocol. T/F

True

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

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