Answer / jitendera sinha

i know most of you are not awrae of the firewall
so i am providig the answers
firewall is a router type divice but not a rputer which act
as a boder betwenn externel network(LIKE internet)and
internel network that is private network
it act as a border in a such maneer that it doesnot allow
the unwanted trafic from out side to inside
there are two tye of firewall
s/w based (YOU HAVE ON YOUR WINDOWX XP CHECK IT OUT)
and hardwair bassed
like cisco sonicfirewall and more

ciscp [pix 501 is a cisco brand firewall and it have 3
interfaec
1 intside intrefafec -through that internel lan is conected
2 ouside interfae-thriugh thatexternel network is conected
3 one is dmz

i will expalin it latter till then i am waitng for your
reply now have give you introductio trying to find it all
interfaec working principle nither at last hera i am and
sudeep is there for helping all of us

Answer / raj

The PIX Firewall protects an inside network from
unauthorized access by users on an outside network, such as
the public Internet. Most PIX Firewall models can
optionally protect one or more perimeter networks, also
known as demilitarized zones (DMZs). Access to the
perimeter network is typically less restricted than access
to the inside network, but more restricted than access to
the outside network. Connections between the inside,
outside, and perimeter networks are controlled by the PIX
Firewall.

All PIX Firewalls provide at least two interfaces, which by
default, are called outside and inside, and are assigned a
security level of 0 and 100, respectively.

Answer / rohit

Sir i don't know the working of DMZ.
but i know what is DMZ

DMZ is stands for Demilitarized Zone(DMZ).
It is separated the network located in the neutral zone
between a private network and a public(outside) network.

When determining whether or not to route a LAN segment, which rule of thumb do you use? A.) 60/40 B.) 50/50 C.) 80/20 D.) 90/10 E.) 70/30

1 Answers  

---

Which of the following use PVCs at layer 2? A.) X.25 B.) HDLC C.) Frame relay D.) ISDN

1 Answers  

---

Which layer defines the physical topology? A.) Application B.) Transport C.) Network D.) Data Link E.) Physical F.) Session

1 Answers  

---

Which of the following are solutions to the problems encountered with Distance-Vector routing? A.) Defining a Maximum B.) Poison Reverse C.) Triggered Updates D.) Shortest path first algorithm. E.) Split Horizon

1 Answers  

---

When does network congestion occurs?

0 Answers  

---

---

Which Circuit is mostly used by Clients in Frame-Relay PVC or SVC ?

5 Answers   TATA,

---

Explain how an spf algorithm works?

0 Answers  

---

Which command enables directly connected network 199.55.72.0 to be used by RIP? A. Router(config router)# rip 199.55.0.0 B. Router(config router)# rip 199.55.72.0 C. Router(config router)# network 199.55.0.0 D. Router(config router)# network 199.55.72.0

1 Answers  

---

what is the binary value of loop back address

13 Answers  

---

how many pass word you can configure on cisco 2500 router

3 Answers   HCL,

---

The CSMA/CD Ethernet IEEE committee is defines as which of the following? A.) 802.2 B.) 802.3 C.) 802.4 D.) 802.5

1 Answers  

---

Of the following switching types, which one has the lowest latency? A.) Cut-through B.) Fragment Free C.) None D.) Store-and-forward

1 Answers  

---