TRICKY SUBNETTING QUESTIONS


YOU HAVE THE FOLLOWING OSPF CONFIGURATION:

ROUTER OSPF 1                                         63     N    RANGE    B
NETWORK 192.168.1.64 0.0.0.63 AREA 0      X.X.X.11|000000    64  65-126   127

WHICH OF THE FOLLOWING INTERFACES WILL PARTICIPATE 
IN THE OSPF PROCESS? (CHOOSE ALL THAT APPLY)


A.F0/0 192.168.1.64
B.F0/1 192.168.1.120*
C.F0/2 192.168.1.127
D.F0/3 192.168.1.65*
E.F0/4 192.168.1.63


YOU HAVE THE FOLLOWING NAT CONFIGURATION

IP NAT POOL LAZ 1.1.1.1 1.1.1.1 NETMASK 255.255.255.0
                                                             15
ACCESS-LIST 1 PERMIT 192.168.1.0 0.0.0.15       X.X.X.1111|0000       14 HOST
                                                           255
                                 0.0.0.255****  X.X.X.|00000000       254 HOST
IP NAT INSIDE SOURCE LIST 1 POOL LAZ OVERLOAD

SOME EMPLOYEES IN YOUR COMPANY ARE COMPLAINING THEY CANT
ACCESS THE INTERNET.
YOU NEED TO GIVE INTERNET ACCESS TO 200 EMPLOYEES.

WHAT IS CAUSING THIS ISSUE?

A.YOU SHOULD CONFIGURE DYNAMIC NAT
B.YOU ONLY HAVE ONE PUBLIC ADDRESS
C.YOU CONFIGURED THE WRONG WILDCARD MASK*
D.NONE OF THE ABOVE


THE NETWORK ENGINEER NEEDS TO CREATE AN ACL THAT
DENIES THE SUBNET OF THE FOLLOWING HOST:          0 0       15     255   
172.31.52.180 255.255.240.0                       X.X.1111|0000.00000000 16 32 48 64 80
WHICH OF THE FOLLOWING WOULD BE CORRECT?

A.ACCESS-LIST 1 DENY 172.31.0.0  0.0.255.255
B.ACCESS-LIST 1 DENY 172.31.64.0 0.0.15.255
C.ACCESS-LIST 1 DENY 172.31.48.0 0.0.15.255*
D.ACCESS-LIST 1 DENY 172.31.32.0 0.0.16.255

                           0 0 0      31 WILDCARD MASK
                           X.X.X.111|00000

                          8SUBNETS        30HOST


255.255.255.255 CONSTANT
255.255.240.0   MASK
--------------  SUBTRACT
 0   0   15 255 WILDCARD MASK