Chapter 7, Ch 8 Network, Ch 8, Networking Quiz: Ch. 08
If the EUI-64 standard is used, what part of an IPv6 address is affected?
The last four blocks of the address.
In an IPv6 address, what do the first four blocks or 64 bits of the address represent?
The site prefix or global routing prefix.
In Kerberos, a temporary set of credentials that a client uses to prove that its identity has been validated is known as a _____________.
Ticket
A /24 CIDR is equivalent to a 255.255.255.0 subnet mask
True
An enterprise-wide VPN can include elements of both the client-to-site and site-to-site models. T?F
True
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
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
Windows, UNIX, Linux, and Mac OS clients are all capable of connecting to a VPN using PPTP. T/F
True
When dealing with a Cisco switch, what is NOT one of the pre-established VLANs?
VLAN 1001
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
In an IPv6 address, what do the first four blocks or 64 bits of the address represent?
a site prefix or global routing prefix
A SecurID key chain fob from RSA security generates a password that changes how often?
every 60 seconds
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
Only Class B and Class C networks can be subnetted.
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.
How is GRE used by the PPP protocol
it encapsulates point to point protocol frames
Subtracting an interesting octet value from 256 yields what number?
magic number
What security principle provides proof of delivery and proof of the sender's identity?
non-repudiation
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
What command will set the native VLAN on a Juniper switch port?
set native-vlan-id
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
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.
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
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
An interface that manages traffic from multiple VLANs is known by what term?
trunk port
When using public and private keys to connect to an SSH server, where must your public key be placed?
In the authorized keys file
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
An IP address of 192.168.18.73/28 has what network ID?
192.168.18.64
The SSH service listens on what TCP port?
22
By default, when using classful addressing, how many bits exist in the host portion of a Class A address?
24
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
How large is the 802.1Q tag that is added to an Ethernet frame when using VLANs?
4 bytes
How often should administrators and network users be required to change their password?
60 days
What is the maximum number of host IP addresses that can exist in a Class B network?
65,534
How many subnets can a /48 site prefix support?
65,536
How many subnets can a /48 site prefix support?
65,536 subnets
What IEEE standard specifies how VLAN information appears in frames and how switches interpret that information?
802.1Q
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 to create their cloud environments?
Citrix Xen
A _________________ is a service that is shared between multiple organizations, but not available publicly.
Community Cloud
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.
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
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
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
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 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
What security encryption protocol requires regular re-establishment of a connection and can be used with any type of TCP/IP transmission?
IPSec
A service model in which hardware services are provided virtually, including network infrastructure devices such as virtual servers.
Iaas
Which type of cloud service model involves hardware services that 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.
What does the VLAN Trunk Protocol (VTP) do?
It shares VLAN database information amongst switches that participate.
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
The _________________ cloud service model provides virtual environments online that can be tailored to the needs of developers.
Paas
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
On a Cisco switch, what would the security association identifier be for VLAN 13?
100,013
A network with 10 bits remaining for the host portion will have how many usable host addresses?
1022
The original version of the Secure Hashing Algorithm (SHA) was developed by the NSA, and used a hash of what length?
160
When using IPv6, what would a /64 network likely be assigned to?
A smaller organization or business
When using IPv6, what would a /64 network likely be assigned to?
A smaller organization or business.
What two different types of encryption can be used by IPSec during data transfer?
AH, ESP
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
The combination of a public key and a private key are known by what term?
Key Pair
Subtracting an interesting octet value from 256 yields what number?
Magic number
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 authentication protocol sends authentication information in cleartext without encryption?
PAP
When PPP is used over an Ethernet network, it is known as ________________.
PPoe
What are the two AAA services?
RADIUS AND TACACS+
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
What protocol is a Microsoft proprietary protocol first available in Windows Vista?
SSTP
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
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
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 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
An encryption key generation and management scheme used by 802.11i
TKIP
What encryption protocol was designed as more of an integrity check for WEP transmissions rather than a sophisticated encryption protocol?
TKIP
A variant of TLS is ___________________, which provides authentication like SSL/TLS, but does not require a certificate for each user.
TTLS
Which of the following statements regarding IPv6 subnetting is NOT accurate?
The largest IPv6 subnet capable of being created is /64
Which of the following statements regarding IPv6 subnetting is NOT accurate?
The largest IPv6 subnet capable of being created is a /64.
An interface that manages traffic from multiple VLANs is known by what term?
aggregation port
What is NOT one of the ways in which networks are commonly segmented?
by device manufacturer
What are the three tenets of the CIA triad, and how do they provide assurances that data will be protected?
confidentiality, integrity, availability