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JN0-231 · Question #12

What are two valid address books? (Choose two.)

The correct answer is A. 66.129.239.128/25 C. 66.129.239.0/24. Network Prefixes in Address Books You can specify addresses as network prefixes in the prefix/length format. For example, 203.0.113.0/24 is an acceptable address book address because it translates to a network prefix. However, 203.0.113.4/24 is not acceptable for an address…

Junos Security Objects

Question

What are two valid address books? (Choose two.)

Options

  • A66.129.239.128/25
  • B66.129.239.154/24
  • C66.129.239.0/24
  • D66.129.239.50/25

How the community answered

(24 responses)
  • A
    75% (18)
  • B
    8% (2)
  • D
    17% (4)

Explanation

Network Prefixes in Address Books You can specify addresses as network prefixes in the prefix/length format. For example, 203.0.113.0/24 is an acceptable address book address because it translates to a network prefix. However, 203.0.113.4/24 is not acceptable for an address book because it exceeds the subnet length of 24 bits. Everything beyond the subnet length must be entered as 0 (zero). In special scenarios, you can enter a hostname because it can use the full 32-bit address length. map/security-address-books-sets.html

Topics

#address book#CIDR notation#subnet addressing#network objects

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