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CNE EXAM QUESTIONS AND ACCURATE ANSWERS
In TCP/IP model, which of the following information belongs to the Data link layer? Select one answer. a. Logical address b. Port number c. MAC address d. IP address - ANSWER c. MAC address
The correct order of layers in TCP/IP model is. Select one answer. a. Physical layer, Network layer, Data Link layer, Transport layer, Application layer b. Physical layer, Data Link layer, Network layer, Application layer, Transport layer c. Physical layer, Data Link layer, Transport layer, Network layer, Application layer d. Physical layer, Data Link layer, Network layer, Transport layer, Application layer - d. Physical layer, Data Link layer, Network layer, Transport layer, Application layer
In TCP, receiver combines data according to. Select one of the choices. a. Acknowledgement number b. Port number c. Sequence number d. Order of arrival - c. Sequence number
The TCP/IP model, which of the following information belongs to the Network layer? Select one of the answers.
a. Port number b. IP address c. Physical address d. MAC address - ANSWER b. IP address
Which of the following systems provides circuit switching service? Select one of the answers. a. telephone system b. postal system packet switching - ANSWER a. telephone system
What is a correct netmask for a class C network? Choose one answer. a. 255.0.0. b. 0.0.0. c. 255.255.0. d. 255.255.255.0 - ANSWER d. 255.255.255.
In UDP, the receiver merges the data based on. Choose one answer. a. Arriving order b. Acknowledgement number c. Port number d. Sequence number - ANSWER a. Arriving order
Which of the following services is connection-oriented? Choose one answer. a. UDP
b. RIP c. OSPF d. BGP - ANSWER d. BGP
Which one of the following transport layer protocols does Simple Network Management Protocol (SNMP) rely on? Choose one. a. UDP b. TCP - ANSWER a. UDP
Which of the following is a function of a WAN? Choose one. a. provides connectivity over a large geographic area b. connects multiple networks in a single building c. connects peripherals in a single location d. provides connectivity on a LAN - ANSWER a. provides connectivity over a large geographic area
What automated service performs the matching of resource names to the required IP address? Choose one from below. a. SSH b. DNS c. HTTP d. Telnet - ANSWER b. DNS
You have a class A network address 10.0.0.0 with 40 subnets, but are required to add 60 new subnets very soon. You would like to still allow for the largest possible number of host IDs per subnet. Which subnet mask should you assign?
Select one of the following answers. a. 255.240.0. b. 255.248.0. c. 255.252.0. d. 255.254.0.0 - ANSWER d. 255.254.0.
Internet-like networks within an enterprise: a.Intranets b.Switching alternating c.Extranets d. Inter organizational networks - ANSWER a.Intranets
At which layer does FTP operate? Choose one. a. Data Link layer b. Application layer c. Transport layer d. Network layer - ANSWER b. Application layer
What is the first byte range of the class A network address? Choose one a. 0 - 127 b. 192 - 223 c. 1 - 127 d. 128 - 191 - ANSWER a. 0 - 127
Given the network, 204.15.5.0/27. How many hosts are available for this network? Select one answer.
Which of the following Windows commands is used for testing reachability of a remote host and displaying the part of the list of intermediary hops? Select one answer. a. tracert b. nslookup c. ping d. nmap - ANSWER c. ping
What is a socket address? Choose one answer. a. Port number b. IP address + Port number c. IP address d. MAC address + Port number - ANSWER b. IP address + Port number
Which of the following protocols uses distance vector routing algorithm? Choose one answer. a. OSPF 255.255.240. b. RIP c. EGP d. BGP - ANSWER b. RIP
When you ping the loopback address, where is a packet sent? Choose one answer. a. Across the wire b. On the network c. Through the loopback dongle d. Down the layers of the IP architecture and then up the layers
ANSWER d. Down the layers of the IP architecture and then up the layers
Which of the following is used to show IP address of a host in Windows operating system? C hoose one answer. a. ipconfigure b. ifconfigure c. ifconfig d. ipconfig - ANSWER d. ipconfig
How to establish a TCP connection? Choose one answer. a. 4-way handshake occurs b. 5-way handshake occurs c. 3-way handshake occurs d. 2-way handshake occurs - ANSWER c. 3-way handshake occurs
On Windows Server network operating system, what is often used to implement and administer some network services like web server, email server, FTP server? Choose one answer. a. MMC (Microsoft Management Console) b. IIS (Internet Information Services) c. Hyper-V d. Active Directory - ANSWER b. IIS (Internet Information Services)
At which layer does repeater work? Select one answer. a. Physical layer b. Data Link layer c. Network layer d. Transport layer - ANSWER a. Physical layer
b. 51 c. 192 d. 0.0.0.5 - ANSWER a. 192.168.
Which of the following device is mainly designed to work at Data link layer? Choose one answer. a. Switch b. Router c. Bridge d. Hub - ANSWER a. Switch
What is default port of SMTP service? Select one answer. a. 53 b. 80 c. 25 d. 110 - ANSWER c. 25
What is a correct netmask for subnet 192.168.100.128/30 Select one answer. a. 255.255.255. b. 255.255.255. c. 255.255.255. d. 255.255.255.224 - ANSWER c. 255.255.255.
Which of the following devices is more secure in term of network sniffing? Select one answer. a. Switch b. Hub - ANSWER a. Switch
The communication mode that supports two-way traffic but only one direction at a time is. a. half duplex b. simplex c. duplex d. multiplex - ANSWER a. half duplex
In TCP/IP model, process-to-process delivery is in. a. Data Link layer b. Transport layer c. Network layer d. Physical layer - ANSWER b. Transport layer
What can considerably alleviate the configuration headache of IP addresses? Choose one answer. a. DHCP Server (dynamic host configuration protocol) b. WINS Server c. FTP Server d. DNS Server - ANSWER a. DHCP Server
Netmask is used to determine: Choose one answer. a. An IP address is in the subnet b. An IP address is a server c. An IP address is a gateway d. An IP address is a DNS - ANSWER a. An IP address is in the subnet
d. 110 - ANSWER c. 80
In VMware, ___________ configures your virtual machine to connect directly to the physical network. Select one answer. a. Custom networking b. Bridge c. Host-only networking d. NAT (network address translation) - ANSWER d. NAT
Which one of the following layer protocols, TCP/IP model is responsible for user and the application program support such as passwords, resource sharing, file transfer and network management? Select one answer. a. Layer 4 protocols b. Layer 2 protocols c. Layer 5 protocols d. Layer 3 protocols - ANSWER c. Layer 5 protocols
What can be determined by examining the network layer header? Choose one answer. a. The destination host address b. The bits that will cross the media c. The source application or process that is generating the data d. The destination device on the local media - ANSWER a. The destination host address
Which of the following is used to show IP address of a host in Linux operating system? Select one answer.
a. ipconfigure b. ifconfigure c. ipconfig d. ifconfig - ANSWER d. ifconfig
You have a class A network address 10.0.0.0 with 40 subnets, but are required to add 60 new subnets very soon. You would like to still allow for the largest possible number of host IDs per subnet. Which subnet mask should you assign? Select one answer. a. 255.240.0. b. 255.254.0. c. 255.248.0. d. 255.252.0.0 - ANSWER b. 255.254.0.
What is the command in Packet tracer to configure static routing? Select one of the options. a. ip route. b. network. c. router. d. ip address. - ANSWER a. ip route.
Which of the following is the range for the first byte of a class B network address? Select one of the options. a. 128 - 191 b. 1 - 126 c. 192 - 223 d. 0 - 127 - ANSWER a. 128 - 191
How many fields are there in a header of IPv6 packet? Select one answer. a. 7 b. 5 c. 9 d. 12 - ANSWER a. 7
What is a correct netmask for a class A network? Select one answer. a. 255.255.0. b. 0.0.0. c. 255.255.255. d. 255.0.0.0 - ANSWER d. 255.0.0.
How many bits are there in an IPv6 network address? Select one answer. a. 128 b. 16 c. 32 d. 64 - ANSWER a. 128
What is a correct netmask for subnet 192.168.100.128/25? Select one of the answers below. a. 255.255.255. b. 255.255.255. c. 255.255.255.
d. 255.255.255.250 - ANSWER b. 255.255.255.
.Execute command "ping 10.0.0.2", which of the following result shows the host 10.0.0. is reachable? Select one of the answers below. a. Reply from 10.0.0.2: bytes=32 time<1ms TTL= b. Default Gateway. .. .. .. .. : 10.0.0. c. TCP localhost:4078 10.0.0.2:80 ESTABLISHED d. IP Address. .. .. .. .. : 10.0.0.2 - ANSWER a. Reply from 10.0.0.2: bytes=32 time<1ms TTL=
Which of the following describes the function of a WAN? Choose one of the following options. a. provides access on a LAN b. Connects devices in one location c. connects multiple networks in one building d. provides connectivity over a large geographic area
ANSWER d. provides connectivity over a large geographic area
Which of the following commands is used to test reachability of a remote host? Select one of the following answers. a. ping b. tracert 255.255.248.0 show ip route c. nmap d. nslookup - ANSWER a. ping
Which of the following layer protocols, TCP/IP model are responsible for user and the
d. 255.0.0.0 - ANSWER d. 255.0.0.
Which of the following is the address of the router? Select one answer. a. The default gateway b. The IP address c. The subnet mask d. The TCP address - ANSWER a. The default gateway
What can greatly reduce IP address configuration problems? Select one answer. a. WINS Server b. FTP Server c. DNS Server d. DHCP Server - ANSWER d. DHCP Server
What application layer protocol is commonly used to support for file transfers between a client and a server? Select one answer. a. Telnet b. HTML c. FTP d. HTTP - ANSWER c. FTP
Which of the following statements are correct about RIP? Select one answer. a. uses a multicast address to update other routers every 90 seconds
b. will send out an update if there is a failure of a link c. uses a broadcast to update all other routers in the network every 60 seconds d. updates only contain information about routes that have changed since last update - ANSWER b. will send out an update if there is a failure of a link
What is default port of POP3 service? Choose one answer.
a. 25 b. 53 c. 80 d. 110 - ANSWER d. 110
What type of cable is frequently used to connect a computer and a switch?
Select one answer.
a. Straight-through cable b. Optical fiber cable c. Cross-over cable d. Coaxial cable - ANSWER a. Straight-through cable
How many IPs can be utilized to assign to desktop PCs in subnet 192.168.5.0/29?
Select one answer.
