Which two goals reasons to implement private IPv4 addressing on your network? (Choose two.)
Which two goals reasons to implement private IPv4 addressing on your network? (Choose two.)
Implementing private IPv4 addressing on your network can help in conserving IPv4 addresses, since private addresses are not routable on the public Internet and can be reused within different private networks. Additionally, private IPv4 addressing reduces the risk of a network security breach because private addresses are hidden from the external Internet, which makes them less vulnerable to external attacks. Thus, the two main reasons for using private IPv4 addressing are conserving IPv4 addresses and enhancing network security.
I think the answer B should be more specific like "To conserve IPv4 Public Addresses" - otherwise you cant conserve IPv4 addresses by using IPv4 addresses.
haha true
B & D are correct!
I'm a little confused, per The CCNA Official Cert Guide Vol1 (page 278): ■Avoiding/Delaying IPv4 Address Exhaustion: To delay the day in which all public IPv4 addresses were assigned to organizations as public addresses, RFC 1918 calls for the use of NAT along with private networks for the addresses internal to an organization. ■ Reducing Internet Routers’ Routing Table Size: Using private networks also helps reduce the size of the IP routing tables in Internet routers. For instance, routers in the Internet do not need routes for the private IP networks used inside organizations (in fact, ISPs filter those routes)
I was thinking the same, I'm using the same book to study for exam and it seems a lot of answers contradict what is in Cisco's OFFICIAL cert guide.
Question is asking the benefits of using private ipv4 on OUR NETWORK . From this perspective it doesn't matter to us whether the size of routing table of ISP or other public routers are less or large. We need to assess the benefits it provides to us. And on that note security is one good reason as our networks can't be accessed from internet unless NAT is in use. And it does save the ipv4 address exhaustion.
and also the forwarding tables of routers in our network won't be any less. We do need to route packets using routing table.
Why does it reduce the breach security?
In a scenario that the network isn't connected to the internet.
private addresses are hidden behund a Nat hence they are not exposed to external reconnaissance attacks from outside the network
if your network don't have internet connectivity, how can i hack you ?
Terribly worded question, the answers actually tell you what the question is.
BD are correct.
grazie ar cazzo
C and D, the question asks why do you implement it, you don't implement something to conserve it
I think it makes sense. Public IP address is not free.
B and D are correct
it´s B & D A. Comply with PCI regulations: While PCI regulations require that organizations protect their cardholder data, they do not specifically require the use of private IPv4 addressing. incorrect B.Conserve IPv4 address: Private IPv4 addressing can help conserve public IPv4 addresses, which are becoming increasingly scarce. correct C. Reduce the size of the forwarding table on network routers: This is not a direct benefit of using private IPv4 addressing, as private IP addresses are typically not included in forwarding tables on network routers. incorrect D. Reduce the risk of a network security breach: Private IPv4 addressing can also help reduce the risk of network security breaches. correct E. Comply with local law: Local laws may require certain security measures, but they do not specifically require the use of private IPv4 addressing. incorrect
It´s B D
B and D are correct
Think there is a typo in the question shouldn't it be: "which two goals ARE reasons..?"
B definitely, and D is reasonable since private addresses are non-routable (externally).
For me is "C", look at what RFC1918- IP-Public said " One challenge is a concern within the community that globally unique address space will be exhausted. A separate and far more pressing concern is that the amount of routing overhead will grow beyond the capabilities of Internet Service Providers. Efforts are in progress within the community to find long term solutions to both of these problems. Meanwhile it is necessary to revisit address allocation procedures, and their impact on the Internet routing system." Referens: https://datatracker.ietf.org/doc/html/rfc1918
B and D are correct but reducing routing table is also true. I'm not sure
B & D are correct