z 6 TCP/IP Basics, LS_DHCP, DNS and Multicast, IPv4 Basics of IP Addressing

By default what is the Host ID for the address 201.44.45.54/24? 0.0.0.54 0.0.45.54 201.44.45.0 201.44.0.0

0.0.0.54

By default what is the Host ID for this IP address 179.79.234.234? 179.0.0.0 0.0.0.234 0.79.234.234 0.0.234.234

0.0.234.234

What is the Host ID for the IP address of 41.1.6.222/8? 0.0.0.222 41.1.6.0 41.0.0.0 0.1.6.222

0.1.6.222

By default, what is the Network ID for the address of 201.102.21.12? 0.0.0.12 201.0.0.0 201.102.21.0 201.102.0.0

201.102.21.0

What is the Network ID for the address 201.44.45.54/24? 201.44.0.0 0.0.45.54 0.0.0.54 201.44.45.0

201.44.45.0

(MMv2C07Q06): Which of the following is a valid Class A IP address? 22.33.44.55 127.0.0.1 250.250.250.250 192.168.0.1

22.33.44.55

In a Class A network, how many bits are available to create host addresses? 23 22 20 21 24

24

(MMv2C07Q01): What is the result of converting 11110000.10111001.00001000.01100111 to dotted decimal notation? 4.5.1.5 240.185.8.103 15.157.16.230 103.8.185.240

240.185.8.103

(MMv2C07Q14): Which of the following is a valid classless subnet mask? 255.255.255.240 255.0.0.0 255.255.0.0 255.255.255.0

255.255.255.240

(MMv2C07Q13): Which of the following is not a valid classful subnet mask? 255.0.0.0 255.255.0.0 255.255.255.0 255.255.255.255

255.255.255.255

In a class A network, how many bits are available (you can modify) for network address manipulation? 7 9 8 6 5

7

In a Class C network, how many bits can you modify to create your host addresses? 8 5 6 7 9

8

(MMv2C07Q04): What is the result of converting 192.168.0.1 to binary 11000000.10101000.00000000.00000001 11000000.10101000.00000000.10000000 11000000.10101000.00000000.1 11.10101.0.1

11000000.10101000.00000000.00000001

In a Class B network, if 4 additional bits are reserved for the mask, how many bits are available for determining the number of hosts which can be supported on each subnet that is created by the additional 4 bits? 11 13 12 14 10

12

Using the default subnet mask, what is the Network ID for the address 121.212.112.122? 0.0.0.122 121.0.0.0 121.212.112.0 121.212.0.0

121.0.0.0

Which of the following is a loopback address? 128.0.0.1 1.1.1.1 0.0.0.0 127.0.0.1

127.0.0.1

(MMv2C07Q05): Which of the following are not valid IP addresses to assign to a Windows-based system? (Select two.) 1.1.1.1/24 127.0.0.1/24 250.250.250.255/24 192.168.0.1/24

127.0.0.1/24 250.250.250.255/24 The special reserved IP address 127.0.0.1 is called the loopback address and is used for testing, not assigning to computers. The IP address 250.250.250.255 has a 255 as part of its address, which is a reserved number for subnet masks.

In a Class B network, the leading bits are always set by default to 10. What is the total decimal value of these leading bits? 64 192 62 128

128

This is your network ID: 172.26.44.10/16. How many bits can you modify (change from 0 to 1 or 1 to 0) in order to create your networks. 18 17 14 15 16

14

(LS Address Assign Q03): which of the following IP address ranges is reserved for Automatic Private IP Addressing? 169.192.0.0 - 169.192.254.255 192.168.0.1 - 192.168.254.255 169.168.0.1 - 169.168.255.255 69.254.0.1 - 169.254.255.254 192.168.0.0 - 192.168.255.254

169.254.0.1 - 169.254.255.254 The Internet Assigned Numbers Authority (IAN A) has reserved 169.254.0.1 - 169.254.255.254 for Automatic Private IP Addressing (APIPA). APIPA also sets the subnet mask on the network to 255.255.0.0

(MMv2C07Q15): Which of the following IP addresses indicates a computer configured for dynamic addressing was unable to locate a DHCP server? 255.255.255.255 192.168.1.1 127.0.0.1 169.254.1.30

169.254.1.30 Anything in the 169.254/16 range, such as 169.254.1.30, indicates that a computer set up to use DHCP has configured itself with APIPA because it can't find a DHCP server.

(MMv2C07Q07): Which of the following is a valid Class B IP address? 10.10.10.253 191.254.254.254 192.168.1.1 223.250.250.1

191.254.254.254

In a Class C network, by default the leading bits are always set at either on or off. This is normally indicated by the bit being set to either 1 or 0. Based on the default settings of a Class C network, what is decimal numerical value for the leading default bits in a Class C network? None of the above 62 64 192 128

192

(MMv2C07Q08): Which of the following is a valid Class C IP address? 50.50.50.50 100.100.100.100 192.168.0.254 250.250.250.250

192.168.0.254 The address 192.168.0.254 falls within the range of Class C addresses because it starts with an octet from 192 through 223.

Which of the following are not valid IP addresses for a host you are adding to a network? Select two choices only. (You must have answers correct for credit. There is no partial credit for this question) 200.200.256.1 191.0.0.1 127.0.0.1 1.2.3.4

200.200.256.1 127.0.0.1

(MMv2C07Q17): Computers set for dynamic addressing that cannot locate a DHCP server use which technique to assign themselves an IP address? APARA ARP RARP APIPA

APIPA Automatic Private IP Addressing (APIPA) to assign themselves an IP address

(MMv2C07Q10): What is the process used to take a single class of IP addresses and chop it up into multiple smaller groups? (Select two.) CIDR PING Subnetting Subnitting

CIDR Subnetting CIDR and subnetting enable you to take a single class of IP addresses and chop it up into multiple smaller groups, subnets.

(MMv2C07Q16): Which of the following is a valid Class D (IPv4) address? Class 128.1.0.1 to 191.255.255.254. Class 192.0.1.1 to 223.255.254.254 Class 224.0.0.0 to 239.255.255.255 Class 240.0.0.0 to 254.255.255.254

Class 224.0.0.0 to 239.255.255.255

What Class of address is 21.34.55.55 if it has a subnet mask of 255.0.0.0? Illegal Class C Class B Class A

Class A

What Class of address is an IP 126.122.243.34 with a subnet mask of 255.0.0.0? Class C Class A Illegal Class B

Class A

An IP address of 192 belongs to what class of network? Reserved Class A Class B Class C

Class C

What Class of IP address is 192.192.232.127/24? Class B Class A Illegal Class C

Class C

What Class of address is 223.75.234.239/24? Illegal Class A Class B Class C

Class C

(MMv2C07Q12): In which order are packets created and sent when a client requests an IP address from a DHCP server? DHCP discovery, DHCP offer, DHCP request, DHCP acknowledge DHCP discovery, DHCP request, DHCP offer, DHCP acknowledge DHCP request, DHCP offer, DHCP discovery, DHCP acknowledge DHCP request, DHCP offer, DHCP acknowledge, DHCP discovery

DHCP discovery, DHCP offer, DHCP request, DHCP acknowledge DORA

(LS Name Resol Q01): 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? Load Balancer IDS IPS Bandwidth Shaper DNS Server

DNS Server Use a DNS server to provide host to IP address resolution.A bandwidth shaper modifies the flow of traffic to keep traffic within predefined limits. A load balancer accepts incoming client requests, and distributes those requests to multiple other servers. An IDS (Intrusion Detection System) detects security threats, while an IPS (Intrusion Prevention System) detects and responds to security threats.

(MMv2C07Q11): Which statements about subnet masks are true? (Select two.) Every network client has a unique subnet mask. Every client on a network shares the same subnet mask. A subnet mask consists of a string of zeroes followed by a string of ones. A subnet mask consists of a string of ones followed by a string of zeroes.

Every client on a network shares the same subnet mask. A subnet mask consists of a string of ones followed by a string of zeroes.

(MMv2C07Q18): Which of the following is a command program for UNIX/Linux/Macintosh used to show TCP/IP settings? IPCONFIG ICONFIG IFCONFIG CONFIG

IFCONFIG

(LS MULTICAST Q01): Which protocol does an IP host use to inform a router that it wants to receive specific multicast frames? SNMP ICMP MGP IGMP IP

IGMP IP hosts use the IGMP or Internet Group Management Protocol to inform multicast enabled routers that they want to receive specific multicast frames

What Class of address is 223.322.232.127? Class C Illegal Class B Class A

Illegal

What Class of address is 44.12.256.254/8? Class A Illegal Class C Class B

Illegal

(LS Address Assign Q04): Which of the following strategies are used to prevent duplicate IP address as being used on a network? (Select two answers only. You must have both answers correct for credit. There is no partial credit for this question). Configure a HOSTS file for local IP resolution. Install a DHCP server on the network. Set the Windows network monitoring utility to identify potential IP conflicts. Install the DHCP client on all workstations Use Automatic Private IP Addressing Configure client systems to use static IP assignment.

Install a DHCP server on the network. Use Automatic Private IP Addressing To avoid duplicate IP addresses being used by network systems, automatic IP assignment is used. Both the DHCP service and APIPA can automatically assign addresses to client systems. Clients configured to use static IP addressing may inadvertently have duplicate IP addresses assigned to them. In such a case, one of the systems will not be able to log on to the network.

(MMv2C07Q02): What does IANA stand for? International Association Numbers Authority International Association Numbering Authority Internet Assigned Numbering Authority Internet Assigned Numbers Authority

Internet Assigned Numbers Authority

Which of the following statements would most closely describe a Class C network? Large number of networks, small number of hosts per network Large number of hosts per network, small number of networks Small number of networks and large number of hosts per network Large number of hosts per network and large number of networks Small number of hosts per network and small number of networks

Large number of networks, small number of hosts per network

(LS MULTICAST Q03): Which of the following addresses types is shared by multiple hosts, and is used to form groups of computers that should receive the same data stream? Unicast Half Duplex Simplex Multicast Broadcas

Multicast A multicast address is an address that identifies a group of computers. Members of the group share the same multicast address.A unicast address is an address that identifies a single host. A broadcast address is an address that is sent to all hosts. Broadcast traffic is typically only forwarded within a subnet. Simplex communications uses a single channel for both sending and receiving. Half duplex uses a separate channel for sending and receiving, but the channels are shared by multiple devices and can only be used by a single device at a time.

(LS MULTICAST Q05): Which type of address is the IP address 232.111.255.250? Unicast Multicast Private Broadcast

Multicast This is an example of a multicast address. A multicast address is an address that identifies a group of computers. Members of the group share the same multicast address. Multicast addresses are in the range of 224.0.0.0 - 239.255.255.255. The address in this question with the first octet beginning with 232 falls into the multicast range.A unicast address is an address that identifies a single host. A broadcast address is an address that is sent to all hosts. Broadcast addresses are the last possible address in a subnet, which is typically ending in 255. The private IP addresses are in the 10, 172 and 192 ranges, which you should know and memorize.

(MMv2C07Q09): Which method sends a packet from a single computer to a group of interested computers? Broadcast Unicast Multicast Omnicast

Multicast While a broadcast sends to multiple computers, those receiving computers are not necessarily interested. Only multicast sends to a group of interested computers.

In a Class A network, the leading bits (or bit) are always set by default to either a 1 (on) or 0 (off) and will always total to a certain decimal value. Based on the default settings of these leading bits, what is the total decimal value of the leading bits? 128+64 None of the above 64+32 128+32 64 128

None of the above

Which of the following statements would most closely describe a Class A network? Small number of hosts per network and small number of networks Large number of hosts per network and large number of networks Small number of networks and large number of hosts per network Large number of networks, small number of hosts per network

Small number of networks and large number of hosts per network

(MMv2C07Q20): Which of the following statements best describes what the default gateway is? IP address of the DHCP server The 127.0.0.1 NIC of the computer The IP address of DNS server The IP address of the router

The IP address of the router

(MMv2C07Q19): What is the function of the Address Resolution Protocol (ARP) protocol? Translate Name to MAC address Translate MAC to IP address Translate MAC to Name Translate IP address to MAC

Translate IP address to MAC Translate MAC addresses to IP addresses. Basically you must get the MAC address to send the packet. So ARP sends a request to get the MAC address that corresponds to the destination IP4 address. Best answer is translate IP address to MAC. Others are wrong.

(LS MULTICAST Q02): What type of address is used in a packet to address the packet to a single host? Full duplex Simplex Broadcast Multicast Unicast

Unicast A unicast address is an address that identifies a single host. A broadcast address is an address that is sent to all hosts. Broadcast traffic is typically only forwarded within (but not between) a subnet. A multicast address is an address that identifies a group of computers. Members of the group share the same multicast address. Simplex communications uses a single channel for both sending and receiving. Full duplex has a dedicated send and receive channel between any two hosts.

(LS MULTICAST Q04): What type of address is the IP address 198.162.12.254/24? Private Multicast Broadcast Unicast

Unicast This is a unicast address that identifies a single host on the 192.162.12.0 network. The host is 0.0.0.254. The broadcast address is 198.162.12.255. Multicast addresses are in the range of 224.0.0.0 - 239.255.255.255. The address does not fall into the private address ranges.

(MMv2C07Q03): Which of the following describe IPv4? (Select three.) Uses decimal, not hexadecimal numbers Uses periods, not colons, as separators Uses four octets Uses eight sets of characters

Uses decimal, not hexadecimal numbers Uses periods, not colons, as separators Uses four octets