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

1 Answer

Answer :

4 Both 2 and 3

Related questions

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 : 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 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

Last Answer : d. block some hosts from accessing the network

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 : 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 : Choose the correct layer numbers and names of the OSI model below. a. Layer 3 - Network Layer, Layer 2 - Data Link Layer, Layer 1 - Physical Layer b. Layer 7 - Application Layer, Layer 6 - Presentation Layer c. Layer 5 - Session Layer, Layer 4 - Transport Layer d. All given options

Last Answer : d. All given options

Description : What layer in the TCP/IP stack is equivalent to the Transport layer of the OSI model? a. Internet b. Host to host c. Network Access d. Application

Last Answer : b. Host to host

Description : Which layer of OSI reference model is responsible for decomposition of messages and generation of sequence numbers to ensure correct re-composition from end to end of the network? (A) Physical (B) Data-link (C) Transport (D) Application

Last Answer : (C) Transport 

Description : TCP/IP ..................layer corresponds to the OSI models to three layers. A) Application B) Presentation C) Session D) Transport

Last Answer : A) UDP

Description : ___ layer perform the host addressing and packet routing. A. Application layer B. Transport layer C. Network layer D. Link layer

Last Answer : C. Network layer 

Description : Find out the OSI layer, which performs token management. A) Network Layer B) Transport Layer C) Session Layer D) Presentation Layer

Last Answer : C) Session Layer

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 : TCP/IP layer corresponds to the OSI models to three layers. A) Application B) Presentation C) Session D) Transport

Last Answer : A) Application

Description : In which layer of OSI session is first check and then data is transmitted a. Application layer b. Presentation layer c. Session layer d. Transport layer

Last Answer : c. Session layer

Description : In which layer of OSI client send request to the server? a. Application layer b. Presentation layer c. Session layer d. Transport layer

Last Answer : c. Session layer

Description : In OSI model, when data is sent from device A to device B, the 5th layer to receive data at B is _________ a. Application layer b. Transport layer c. Link layer d. Session layer

Last Answer : d. Session layer

Description : In OSI model, when data is sent from device A to device B, the 5th layer to receive data at B is _________ a. Application layer b. Transport layer c. Link layer d. Session layer

Last Answer : d. Session layer

Description : In OSI model, when data is sent from device A to device B, the 5th layer to receive data at B is _________ a) Application layer b) Transport layer c) Link layer d) Session layer

Last Answer : d) Session layer

Description : TCP/IP ................. layer corresponds to the OSI models to three layers. A) Application B) Presentation C) Session D) Transport

Last Answer : A) Application

Description : Which layer is called a port layer in OSI model? a. Session b. Application c. Presentation d. Transport

Last Answer : a. Session

Description : Layer one of the OSI model is a. physical layer b. link layer c. transport layer d. network layer e. none of above

Last Answer : physical layer

Description : In OSI network architecture, the routing is performed by a. network layer b. data link layer c. transport layer d. session layer e. none of above

Last Answer : network layer

Description : In OSI network architecture, the dialogue control and token management are responsibility of a. session layer b. network layer c. transport layer d. data link layer e. none of above

Last Answer : session layer

Description : Find out the OSI layer, which performs token management. A) Network Layer B) Transport Layer C) Session Layer D) Presentation Layer

Last Answer : C) Session Layer

Description : In OSI network architecture, the routing is performed by a. network layer b. data link layer c. transport layer d. session layer

Last Answer : a. network layer

Description : In OSI network architecture, the dialogue control and token management are responsibility of a. session layer b. network layer c. transport layer d. data link layer

Last Answer : a. session layer

Description : The physical address to each machine is provided by which layer in an OSI reference model? A. Physical layer B. Data Link Layer C. Network Layer D. Transport Layer

Last Answer : B. Data Link Layer

Description : The physical address to each machine is provided by which layer in an OSI reference model? A. Physical layer B. Data Link Layer C. Network Layer D. Transport Layer

Last Answer : B. Data Link Layer

Description : The layer that transmits data in the form of bit streams using electrical and mechanicalsystems is in the OSI model. a. Physical layer b. Transport Layer c. Network Layer d. Data Link Layer

Last Answer : a. Physical layer

Description : Find out the OSI layer, which performs token management. A) Network Layer B) Transport Layer C) Session Layer D) Presentation Layer

Last Answer : C) Session Layer

Description : Which layers of the OSI reference model are host-to-host layers ? (A) Transport, Session, Presentation, Application (B) Network, Transport, Session, Presentation (C) Data-link, Network, Transport, Session (D) Physical, Data-link, Network, Transport

Last Answer : (A) Transport, Session, Presentation, Application

Description : Application layer is implemented in _______ a. End system b. NIC c. Ethernet d. Packet transport

Last Answer : a. End system

Description : Application layer is implemented in ____________ a) End system b) NIC c) Ethernet d) Packet transport

Last Answer : a) End system

Description : The............ layer of OSI model can use the trailer of the frame for error detection. A) Physical B) Data link C) Transport D) Presentation

Last Answer : A) Physical

Description : Which among the following is correct: a) Network firewalls are a software appliance running on general purpose hardware or hardware based firewall computer appliances that filter traffic between two or more networks. b ... traffic in and out of that single machine c) Both of Above d) None of These

Last Answer : c) Both of Above

Description : The TCP/IP _______ layer is equivalent to the combined session, presentation, and application layers of the OSI model. a.data link b.network c.physical d.application

Last Answer : d.application

Description : Which of the following statements can be associated with OSI model? a. A structured way to discuss and easier update system components b. One layer may duplicate lower layer functionality c. ... no way requires information from another layer d. It is an application specific network model

Last Answer : b. One layer may duplicate lower layer functionality

Description : Which OSI layer assumes responsibility for managing network connections between applications? a. Network layer b. Data link layer c. Application layer d. Session layer

Last Answer : d. Session layer

Description : .Which of the following statements can be associated with OSI model? a. A structured way to discuss and easier update system components b. One layer may duplicate lower layer functionality c. ... no way requires information from another layer d. It is an application specific network model

Last Answer : Functionality at one layer no way requires information from another layer

Description : In packet-filtering router, the following information can be external from the packet header. i) Source IP address ii) Destination IP address iii) TCP/UDP source port iv) ICMP message type v) TCP/UDP destination port A) i, ii, ... iv and v only C) ii, iii, iv and v only D) All i, ii, iii, iv and v

Last Answer : D) All i, ii, iii, iv and v

Description : Most networks employ devices for routing services. Routers work at which of the Following OSI Layers? 1) Transport 2) Network 3) Presentation 4) Session

Last Answer : 2) Network

Description : Most networks employ devices for routing services. Routers work at which of the Following OSI Layers? 1 Transport 2 Network 3 Presentation 4 Session

Last Answer : 2 Network

Description : Which of the following systems run an application layer firewall using proxy software? 1) Proxy NAT 2) Proxy client 3) Client 32 4) Proxy server

Last Answer : 4) Proxy server

Description : Which of the following systems run an application layer firewall using proxy software? 1 Proxy NAT 2 Proxy client 3 Client 32 4 Proxy server

Last Answer : 4 Proxy server

Description : What are called routers? a. The devices that operates at session layer b. The devices that operates at data layer c. The devices that operates at application layer d. The devices that operates at network

Last Answer : d. The devices that operates at network

Description : Which of the following OSI layers correspond to TCP/IP's application layer? A) Application B) IP Address C) Session D) All of the above

Last Answer : D) All of the above

Description : The first paper published on firewall technology was in ____, when engineers from Digital Equipment Corporation (DEC) developed filter systems known as packet filter firewalls: a) 1988 b) 1999 c) 1992 d) None of These

Last Answer : a) 1988

Description : Which among the following is correct characteristics about proxy server: a) A proxy server may act as a firewall by responding to input packets in the manner of an application while blocking other packets. b) A ... as a proxy on behalf of the network user; d) All of the Above e) None of These

Last Answer : d) All of the Above

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