160 Midterm chapter 5
The ______also called the root domain, denotes a fully qualified, unambiguous domain name. Top-level domain (TDL) Fully qualified domain name (FQDN) .(dot) domain
.(dot) domain
Which of the following IP address ranges is reserved for Automatic Private IP Addressing? 169.192.0.0 - 169.192.254.255 169.254.0.1 - 169.254.255.254 169.254.0.1 - 169.168.255.255 192.168.0.1 - 192.168.254.255 192.168.0.0 - 192.168.255.254
169.254.0.1 - 169.254.255.254
Which of the following is a valid IPv4 address? (Select two.) 192.168.1.512 1.254.1.1024 256.0.0.1 10.384.0.3 254.7.1.417 2.2.2.2 172.16.1.26
2.2.2.2 172.16.1.26
Points a hostname to an IPv4 address. A AAAA MX PTR CNAME
A
Points a hostname to an IPv6 address. A AAAA MX PTR CNAME
AAAA
Provides alternate names to hosts that already have a host record. A AAAA MX PTR CNAME
CNAME
Consider the following IP addresses. 127.77.8.5 131.11.0.9 190.66.250.10 196.5.89.44 Which list represents the IP address class of each listed IP address? Class B, Class B, Class C, Class C Class A, Class B, Class B, Class C Class A, Class B, Class C, Class C Class B, Class B, Class C, Class D
Class A, Class B, Class B, Class C
Using custom subnet masks is often called _____ addressing because the subnet mask cannot be inferred simply from the class of a given IP address. The address class is ignored and the mask is always supplied to identify the network and host portions of the address.
Classless
You manage a server that uses an IP address of 192.168.255.188 with a mask of 255.255.0.0. Which of the following describes the address type? Public Multicast Classless Broadcast Classful
Classless
The client begins by sending out a DHCP Discover frame to identify DHCP servers on the network. DHCP Discover (D) DHCP Offer (O) DHCP Request (R) DHCP ACK (A)
DHCP Discover
The client accepts the offered address by sending a DHCP Request back to the DHCP server. If multiple offers were sent, the DHCP Request message from the client also informs the other DHCP servers that their offers were not accepted and the IP addresses contained in their offers can be made available to other clients. DHCP Discover (D) DHCP Offer (O) DHCP Request (R) DHCP ACK (A)
DHCP Request
You have a network with 50 workstations. You want to automatically configure workstations with the IP address, subnet mask, and default gateway values. Which device should you use? DHCP server DNS server Router Gateway
DHCP server
You need to enable hosts on your network to find the IP address of logical names such as srv1.myserver.com Which device would you use? IDS DNS server Bandwidth shaper IPS Load balancer
DNS server
True or False? An IDS accepts incoming client requests, and distributes those requests to multiple other servers.
False
True or False? Statefull DHCPv6 does not provide the client an IP address and does not track the status of each client. It is instead used to supply the client with the DNS server IP address. Statefull DHCPv6 is most useful when used in conjunction with stateless autoconfiguration.
False
True or False? The multicast address is a unicast address that is assigned to more than one interface, typically belonging to different hosts. An multicast packet is routed to the nearest interface having that address (based on routing protocol decisions).
False Explanation: The anycast address is a unicast address that is assigned to more than one interface, typically belonging to different hosts. An anycast packet is routed to the nearest interface having that address (based on routing protocol decisions).
True or False? Authoritative servers are used to store entries for hostnames, IP addresses, and other information in the zone database. Each host has at least one record in the DNS database that maps the hostname to the IP address.
False Records are used to store entries for hostnames, IP addresses, and other information in the zone database. Each host has at least one record in the DNS database that maps the hostname to the IP address. An authoritative server is a DNS server that has a full, complete copy of all the records for a particular domain.
True or False? subnetting combines multiple small network addresses into a single larger network.
False Supernetting combines multiple small network addresses into a single larger network
True or False? Use the ip helper-address command to specify the remote DHCP server
False The ip helper command is used on cisco routers not windows servers
True or False? An IP address is a 16-bit binary number.
False An IP address is a 32-bit binary number represented as four octets (four 8-bit numbers). Each octet is separated by a period.
Which organization is responsible for allocating public IP addresses? IANA IEEE IETF CompTIA
IANA
Identifies servers that can be used to deliver mail. A AAAA MX PTR CNAME
MX
Points an IP address to a hostname. A AAAA MX PTR CNAME
PTR
You are configuring the DHCP Relay Agent role service on a Windows server. Which of the following is a required step for the configuration? Use the ip helper-address command to specify the remote DHCP server. Configure the Windows server to be on the same subnet as the DHCP server. Specify which server network interface the agent listens on for DHCP messages. Connect and RFC 1542 complaint router to the Windows server
Specify which server network interface and agent listens on for DHCP messages
Obtains the interface ID, subnet prefix, default gateway, and other configuration information from a DHCPv6 server. Stateless Autoconfiguration Stateful Autoconfiguration DHCPv6 Static Full Assignment Static Partial Assignment
Stateful Autoconfiguration
The entire 128-bit address and all other configuration information is statically assigned to the host. Stateless Autoconfiguration Stateful Autoconfiguration DHCPv6 Static Full Assignment Static Partial Assignment
Static Full Assignment
Which of the following best describes the purpose of using subnets? Subnets divide an IP network address into multiple network addresses. Subnets let you connect a private network to the Internet. Subnets place each device within its own collision domain. Subnets combine multiple IP network addresses into one network address.
Subnets divide an IP network address into multiple network addresses.
You manage a subnet that uses the following subnet address: 198.162.1.0/23 Which of the following best describes how addressing is configured for the subnet? Supernetting Private Classful Subnetting
Supernetting
_____ _____ establishes a tunnel between individual hosts so they can communicate through a private or public IPv4 network. 6-to-4 tunneling 4-to-6 tunneling Teredo tunneling Manually configured tunnel
Teredo tunneling
A _____ is the last part of a domain name (e.g., .com, .edu, .gov). _____are managed by the Internet Corporation of Assigned Names and Numbers (ICANN). Top-level domain (TDL) Fully qualified domain name (FQDN) .(dot) domain
Top-level domain (TDL)
True or False? A bandwidth shaper modifies the flow of traffic to keep traffic within predefined limits
True
True or False? An IPv6 address is a 128-bit binary number.
True
True or False? The FQDN includes the hostname and all domain names, separated by periods. The final period (for the root domain) is often omitted and only implied.
True
True or False? Unicast addresses are assigned to a single interface, for the purpose of allowing that one host to send and receive data. Packets sent to a unicast address are delivered to the interface identified by that address.
True
True or False? When you subnet a network by using a custom mask, you can divide the IP addresses between several subnets.
True
You have configured your organization's DHCP server to dynamically assign IP addresses to DHCP clients using a lease duration of four days. A user's workstation is powered on and receives addressing information form this DHCP server Monday morning at 8:00 AM. When will the client contact the DHCP server to renew the lease (by default)? Wednesday morning Friday morning Never Thursday morning
Wednesday Morning
Which of the following are characteristics of Teredo tunneling? (Select three). Dual stack routers Works through NAT Tunnel endpoints configured on hosts IPv4-only hosts communicate with IPv6-only hosts Dual stack hosts
Works through NAT Tunnel endpoints configured on hosts Dual stack hosts
The DHCP server assigns the IP address and other information to the client. The assignment is called _____, and it includes _____time that identifies how long the client can use the IP address. lease loan layaway borrowed
lease
