Networking Practice
Which of these is not applicable for UDP protocol?
offer reliable service
The network layer concerns with
packets
What is the maximum number of IP addresses that can be assigned to hosts on a local subnet that uses the 255.255.255.224 subnet mask?
30
What protocol is used to find the hardware address of a local device?
ARP
Data communication system within a building or campus is
LAN
Acknowledgments, sequencing, and flow control are characteristics of which OSI layer?
LAYER 4
Routers belong to which layer of the OSI Model?
Layer 3
Acknowledgments, sequencing, and flow control are characteristics of which OSI layer?
Layer 4
What is the difference between the running-config file and the startup-config file?
The running-config file is nonvolatile and is not lost when the switch loses power
DHCP uses UDP port _________ for sending data to the server.
67
In a classful adressing, how many bit belong to the host in the following address:
8
How to implement a network medium that is not susceptible to EMI. Which type of cabling should you use?
Fiber optic
FTP stands for
File Transfer Protocol
What metric does RIPv2 use to find the best path to a remote network?
Hop Count
Data communication system spanning states, countries, or the whole world is
WAN
Which of the following is an example of a multicast address?
224.0.0.10
You need to subnet a network that has 5 subnets, each with at least 16 hosts. Which classful subnet mask would you use?
255.255.255.224
If you wanted to have 12 subnets with a Class C network ID, which subnet mask would you use?
255.255.255.240
You have a network that needs 29 subnets while maximizing the number of host addresses available on each subnet. How many bits must you borrow from the host field to provide the correct subnet mask?
3
How many broadcast domains are created when you segment a network with a 12-port switch?
1
If an Ethernet port on a router were assigned an IP address of 172.16.112.1/25, what would be the valid subnet address of this host?
172.16.112.0
Your router has the following IP address on Ethernet0: 172.16.2.1/23. Which of the following can be valid host IDs on the LAN interface attached to the router?
3 and 4 only
Which of the following is the broadcast address for a Class B network ID using the default subnetmask?
172.16.255.255
What are the two most simple forms of routing metric used?
Bandwidth & Delay
Which layer 4 protocol is used for a Telnet connection?
TCP
User datagram protocol is called connectionless because
all UDP packets are treated independently by transport layer
In the layer hierarchy as the data packet moves from the upper to the lower layers, headers are
Added
Which class of IPs has the most host addresses by default?
Class A
You have an IP address of 172.16.13.5 with a 255.255.255.128 subnet mask. What is your class of address, subnet address, and broadcast address?
Class B, Subnet 172.16.13.0, Broadcast address 172.16.13.127
______________refers to computing technologies in which the hardware and software components are distributed across a network.
Client and Server
A DNS client is called
DNS resolver
When a packet is routed across the Internet, the IP Address changes at every hop and the MAC Address stays the same.
False
The IETF standards documents are called
RFC
Which of the following is not an advantage of static routing?
Recovers automatically from lost routes.
What kind of cable allows for a serial connection to a Cisco networking device
Serial
Communication between a computer and a keyboard involves ______________ transmission
Simplex
If your routing table has a static, an RIP, and an EIGRP route to the same network, which route will be used to route packets by default?
Static route
The combination of _________ and __________ is often termed the local address of the local portion of the IP address.
Subnet number and host number
You need to provide network connectivity to 150 client computers that will reside in the same subnetwork, and each client computer must be allocated dedicated bandwidth. Which device should you use to accomplish the task?
Switch
What is the purpose of flow control?
To provide a means for the receiver to govern the amount of data sent by the sender.
DHCP client and servers on the same subnet communicate via
UDP BROADCAST
Which one of the following task is not done by data link layer?
channel coding
Transmission control protocol is
connection oriented protocol
ICMP is primarily used for
error and diagnostic functions
The network layer protocol of the Internet is
internet protocol
Which field helps to check rearrangement of the fragments?
offset
A list of protocols used by a system, one protocol per layer, is called
protocol stack
If a server has no clue about where to find the address for a host name then it will ask the___________server
root