A packet filtering firewall can
a. deny certain users from accessing a
service
b. block worms and viruses from
entering the network
c. disallow some files from being
accessed through FTP
d. block some hosts from accessing the
network

1 Answer

Answer :

d. block some hosts from accessing the
network

Related questions

Description : Which of the following use routes with packet filtering rules to allow or deny access based on source address, destination address, or port number? 1) Application layer Firewall 2) Packet Filtering Firewall 3) Router enhanced firewall 4) IP enabled firewall

Last Answer : 2) Packet Filtering Firewall

Description : Which of the following use routes with packet filtering rules to allow or deny access based on source address, destination address, or port number? 1 Application layer Firewall 2 Packet Filtering Firewall 3 Router enhanced firewall 4 IP enabled firewall

Last Answer : 2 Packet Filtering Firewall

Description : A packet filtering firewall operates at which of the following OSI layer? 1) At the Application layer 2) At the Transport Layer 3) At the Network Layer 4) Both 2 and 3

Last Answer : 4) Both 2 and 3

Description : A packet filtering firewall operates at which of the following OSI layer? 1 At the Application layer 2 At the Transport Layer 3 At the Network Layer 4 Both 2 and 3

Last Answer : 4 Both 2 and 3

Description : Software that prevents unauthorized persons from accessing certain parts of a program, database or network is: a) Firewall b) Scanner c) Anti - Virus d) None of These

Last Answer : a) Firewall

Description : Which of the following is / are the types of firewall? A) Packet Filtering Firewall B) Dual Homed Gateway Firewall C) Screen Host Firewall D) All of the above

Last Answer : D) All of the above

Description : A hardened firewall host on an intranet (i) has a proxy application gateway program running on it (ii)Allows specified internet users to access specified services in the intranet (iii) Initiates all internet activities requested by clients ... ii b. i, ii, iii c. i, ii, iii, iv d. ii, iii, iv

Last Answer : c. i, ii, iii, iv 

Description : Which among the below stated datagram discard code fields in ICMP is/are generated if a router fails to forward a packet due to administrative filtering? a. Source Route Failed b. Communication Administratively Prohibited c. Host Precedence Violation d. Precedence Cut-off in Effect

Last Answer : b. Communication Administratively Prohibited

Description : What is backup? 1) Adding more components to your network 2) Protecting data by copying it from the original source to a different destination 3) Filtering old data from the new data 4) Accessing data on tape 5) None of these

Last Answer : Answer :2

Description : A __________ is a device that forwards packets between networks by processing the routing information included in the packet. a) bridge b) firewall c) router d) hub

Last Answer : c) router

Description : What is the size of memory which can be accessed by direct accessing in 8085 microprocessor? A) 64 kB B) 4 kB C) 128 kB D) 128 MB 

Last Answer : What is the size of memory which can be accessed by direct accessing in 8085 microprocessor? A) 64 kB B) 4 kB C) 128 kB D) 128 MB 

Description : Which of the following is a characteristic of a firewall? a. Examines each message as it seeks entrance to the network b. Blocks messages without the correct markings from entering the network c. Detects computers communicating with the Internet without approval d. All of the above

Last Answer : d. All of the above

Description : The process of transferring files from acomputer on the Internet to your computer is called– (A) downloading (B) uploading (C) FTP (D) JPEC (E) downsizing

Last Answer : downloading

Description : Which of the following of the TCP/IP protocols is the used for transferring files from one machine to another? A) FTP B) C) SNMP C) SMTP D) D) Rpe

Last Answer : A) FTP

Description : Which of the following applications allows a user to access and change remote files without actual transfer? A) DNS B) FTP C) NFS D) Telnet

Last Answer : C) NFS

Description : Which of the following TCP/IP protocols is used for transferring files form one machine to another. A) FTP B) SNMP C) SMTP D) RPC

Last Answer : A) FTP

Description : The first type of firewall was the packet filter which looks at: a) network addresses b) Ports of the packet and determines if that packet should be allowed or blocked c) Both of above d) None of These

Last Answer : c) Both of above

Description : A layer-4 firewall (a device that can look at all protocol headers up to the transport layer) CANNOT a. block entire HTTP traffic during 9:00PM and 5 :0OAM b. block all ICMP traffic c. stop ... address d. block TCP traffic from a specific user on a multi-user system during 9:00PM and 5:00AM

Last Answer : d. block TCP traffic from a specific user on a multi-user system during 9:00PM and 5:00AM

Description : Proxy application gateway (i) acts on behalf of all intranet users wanting to access interne securely (ii)monitors all accesses to internet and allows access to only specified IP addresses (iii) disallows use of certain protocols with ... ii b. i, ii, iii c. i, ii, iii, iv d. ii, iii, iv

Last Answer : b. i, ii, iii 

Description : ____intercepts all messages entering and leaving the network. The _____effectively hides the true network addresses: a) Circuit Level Gateway b) Proxy Server c) Packet Filter d) None of These

Last Answer : b) Proxy Server

Description : When you ping theloopback address,a packet is sent where? A. On the network B. Down through thelayers of the IP architecture and then up thelayers again C. Across the wire D. through the loopback dongle E. None of the above

Last Answer : Down through thelayers of the IP architecture and then up thelayers again

Description : The service access points in Session Layer are called ________________ A. Accessing point B. activation point C. Session Service Access Points D. both a and b

Last Answer : C. Session Service Access Points

Description : A one-to-all communication between one source and all hosts on a network is classified as a_______ communication. A) unicast B) multicast C) broadcast D) none of the above

Last Answer : broadcast

Description : You are working with a network thathas the network ID 192.168.10.0. What subnet should you use that supportsup to 25 hosts and a maximum number of subnets? A. 255.255.255.192 B. 255.255.255.224 C. 255.255.255.240 D. 255.255.255.248 E. 255.255.255.252

Last Answer : 255.255.255.224

Description : Which of the following statement is true? I. An address with all bits 1 is interpreted as all networks or all hosts. II. The class A network 128.0.0.0 is defined as the loopback network. a. i only b. ii only c. Both A and B d. None of the above

Last Answer : a. i only

Description : The ………………………. protocol was originally developed as a mechanism to enable diskless hosts to be remotely booted over a network as workstations. A. RARP B. ARP C. DHCP D. BOOTP

Last Answer : D. BOOTP

Description : Find out the components of DHCP: 1) A protocol that delivers host-specific configuration parameters from a server to a host. 2) The client determines its own hardware address; this is normally in a ROM on the hardware. 3) ... or permanent network addresses to hosts. A. 1,2 B. 1,3 C. 2,3 D. 1,2,3

Last Answer : B. 1,3

Description : ………………...is a minimal protocol that allows isolated hosts to link via TCP/IP over the telephone network and ………………..uses a proposed international standard for transmitting HDLC over asynchronous lines. A. LCP, PPP B. PPP, LCP C. SLIP, PPP D. PPP, SLIP

Last Answer : C. SLIP, PPP

Description : A _______is defined as a small, fixed-size block of information. A) frame B) packet C) cell D) none of the above

Last Answer : cell

Description : TELNET, FTP, SMTP, Protocols fall in the following layer of OSI reference model? a. Transport layer b. Internet layer c. Network layer d. Application layer

Last Answer : d. Application layer

Description : Filtering of packets by firewall based on a router has facilities to a. i, iii b. i, ii, iii c. i, ii, iii, iv d. ii, iii, iv

Last Answer : b. i, ii, iii 

Description : Point out the wrong statement. a) Distributed transaction systems such as internetworks or cloud computing systems magnify the difficulties faced by identity management systems b) The Distributed ... CardSpace specifications support the authentication type of data object d) None of the mentioned

Last Answer : The OpenID and

Description : Point out the wrong statement. A. Distributed transaction systems such as internetworks or cloud computing systems magnify the difficulties faced by identity management systems B. The Distributed Audit ... CardSpace specifications support the authentication type of data object D. All of the above

Last Answer : The OpenID and CardSpace specifications support the authentication type of data object

Description : Could someone give me a step by step guide for using my windows firewall (or something that will do the job) to block certain programs from transferring and receiving data across the web?

Last Answer : Download and install comodo internet security After installation, open it, go to the “firewall” tab, click “define new blocked application”, select -> browse, then select the executable file you want to block, -> click “apply” -> done

Description : A _________ network is across between a circuit-switchednetworkand a datagram network. It has some characteristics ofboth. A) virtual-circuit B) packet-switched C) frame-switched D) none of the above

Last Answer : virtual-circui

Description : A network is a cross between a circuit-switched network and a datagram network. It has some characteristics of both. a. virtual-circuit b. packet-switched c. None of the Given d. frame-switched

Last Answer : a. virtual-circuit

Description : A local telephone network isan example of a_______ network. A) packet-switched B) circuit-switched C) message-switched D) none of the above

Last Answer : circuit-switched

Description : The _______ address in theheader ofa packet in adatagram network normally remains thesame during the entire journeyof the packet. A) source B) destination C) local D) none of the above

Last Answer : destination

Description : If the sender is a host and wants tosend a packet toanotherhost on another network, the logical address that must be mapped to a physical address is ______. A) thedestination IP address in the datagram ... the IP address of therouter found inthe routing table C) either a or b D) noneof the above

Last Answer : the IP address of therouter found inthe routing table

Description : In _______delivery, both thedeliverer of the IP packet and the destination are on the same network. A) aconnectionless B) a direct C) an indirect D) none of the above

Last Answer : a direct

Description : What is one advantage of setting up a DMZ(Demilitarized Zone) with two firewalls? a. You can control where traffic goes in the three networks b. You can do stateful packet filtering c. You can do load balancing d. Improve network performance

Last Answer : a. You can control where traffic goes in the three networks

Description : Which of the following is not a congestion policy at network layer? a. Flow Control Policy b. Packet Discard Policy c. Packet Lifetime Management Policy d. Routing Algorithm

Last Answer : a. Flow Control Policy

Description : Which of the following assertions is FALSE about the Internet Protocol (IP)? a. It is possible for a computer to have multiple IP addresses b. IP packets from the same source to the same ... outgoing packets; the route is determined only by the routing tables in the routers on the way

Last Answer : d. The packet source cannot set the route of an outgoing packets; the route is determined only by the routing tables in the routers on the way

Description : In virtual circuit network each packet contains ___________ a. full source and destination address b. a short VC number c. only source address d. only destination address

Last Answer : b. a short VC number

Description : In an Ethernet local area network, which one of the following statements is TRUE ? a. A station stops to sense the channel once it starts transmitting a frame. b. The purpose ... collision is detected. d. The exponential backoff mechanism reduces the probability of collision on retransmissions

Last Answer : The exponential backoff mechanism reduces the probability of collision on retransmissions

Description : In virtual circuit network each packet contains ___________ A. full source and destination address B. a short VC number C. only source address D. only destination address

Last Answer : B. a short VC number

Description : BSNL land line telephone network is an example of a network. A. Packet switched B. Circuit switched C. Bit switched D. Line switched

Last Answer : B. Circuit switched

Description : A local telephone network is an example of a _______ network. a) Packet switched b) Circuit switched c) Bit switched d) Line switched

Last Answer : b) Circuit switched