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Recent questions tagged firewall

0 votes
1 answer
1
Firewall
" Firewall will only allow external hosts to send packets on existing open TCP connections or connections that are being opened (by internal hosts) but not allow them to open TCP connections to hosts in the private network" What problem will arise, if it open TCP connections to hosts in the private network ?
" Firewall will only allow external hosts to send packets on existing open TCP connections or connections that are being opened (by internal hosts) but not allow them to open TCP connections to hosts in the private network" What problem will arise, if it open TCP connections to hosts in the private network ?
asked Jun 7, 2018 in Computer Networks srestha 374 views
1 vote
3 answers
2
ISRO2018-77
What is one advantage of setting up a $DMZ$ (Demilitarized Zone) with two firewalls? You can control where traffic goes in the three networks You can do statefull packet filtering You can do load balancing Improve network performance
What is one advantage of setting up a $DMZ$ (Demilitarized Zone) with two firewalls? You can control where traffic goes in the three networks You can do statefull packet filtering You can do load balancing Improve network performance
asked Apr 22, 2018 in Computer Networks Arjun 2.2k views
2 votes
1 answer
3
UGCNET-Sep2013-III: 58
A _____ can forward or block packets based on the information in the network layer and transport layer header Proxy firewall Firewall Packet filter firewall Message digest firewall
A _____ can forward or block packets based on the information in the network layer and transport layer header Proxy firewall Firewall Packet filter firewall Message digest firewall
asked Jul 24, 2016 in Computer Networks jothee 1.5k views
40 votes
3 answers
4
GATE CSE 2011 | Question: 2
A layer-$4$ firewall (a device that can look at all protocol headers up to the transport layer) CANNOT block entire $\text{HTTP}$ traffic during $9:00PM$ and $5:00AM$ block all $\text{ICMP}$ traffic stop incoming traffic from specific $\text{IP}$ ... same IP address block $\text{TCP}$ traffic from a specific user on a multi-user system during $9:00PM$ to $5:00AM$
A layer-$4$ firewall (a device that can look at all protocol headers up to the transport layer) CANNOT block entire $\text{HTTP}$ traffic during $9:00PM$ and $5:00AM$ block all $\text{ICMP}$ traffic stop incoming traffic from specific $\text{IP}$ address but allow outgoing ... to the same IP address block $\text{TCP}$ traffic from a specific user on a multi-user system during $9:00PM$ to $5:00AM$
asked Sep 29, 2014 in Computer Networks jothee 10.7k views
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