# Wildcard Bits explained

**URL:** <https://forum.networklessons.com/t/wildcard-bits-explained/888>\
**Category:** Lessons Discussion\
**Created:** [December 22, 2016, 12:32am UTC](https://forum.networklessons.com/t/wildcard-bits-explained/888 "2016-12-22T00:32:19Z")\
**Posts on this page:** 1\
**Showing post:** 5

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**Author:** ![gordonflash984](https://cdn-forum.networklessons.com/letter_avatar_proxy/v4/letter/g/4bbf92/32.png) [@gordonflash984](https://forum.networklessons.com/u/gordonflash984)\
**Post date:** [July 1, 2015, 11:10pm UTC](https://forum.networklessons.com/t/wildcard-bits-explained/888/5 "2015-07-01T23:10:34Z")

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Having trouble with the following example: Not clear why A and C are the correct answers.

A network administrator is configuring ACLs on a Cisco router, to allow traffic from hosts on networks 192.168.146.0, 192.168.147.0, 192.168.148.0, and 192.168.149.0 only. Which two ACL statements, when combined, would you use to accomplish this task? (Choose two)

A. access-list 10 permit ip 192.168.146.0 0.0.1.255  
B. access-list 10 permit ip 192.168.147.0 0.0.255.255  
C. access-list 10 permit ip 192.168.148.0 0.0.1.255  
D. access-list 10 permit ip 192.168.149.0 0.0.255.255  
E. access-list 10 permit ip 192.168.146.0 0.0.0.255  
F. access-list 10 permit ip 192.168.146.0 255.255.255.0

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