Exam 350-401 topic 1 question 605 discussion

25 = 00011001 = 0001|1001 = 19

the correct virtual MAC address for HSRP group 25 is: D. 00:00:0c:07:ac:19 Explanation: The HSRP virtual MAC address format is 00:00:0c:07:ac:<group_number>, where <group_number> is represented in hexadecimal. Decimal 25 converts to hexadecimal 19, so the complete address for HSRP group 25 is 00:00:0c:07:ac:19. Summary of Incorrect Options: A. 04:16:6S:96:1C:19: Invalid MAC address format. B. 00:00:0c:07:ac:25: Incorrect, as it would correspond to decimal 37. C. 05:5c:5e:ac:0c:25: Not a valid HSRP format.

Decimal 25 to Hexadecimal: Divide 25 by 16: Quotient = 1 Remainder = 9 Combine quotient and remainder in hexadecimal form: 19

D is correct

the HEX of "25" = 19

D is correct

HSRP group should be in hex

Correct D

25 in HEX is 19 - so D is correct.

Vlan100 - Group 25 State is Listen 5 state changes, last state change 00:08:37 Virtual IP address is 192.168.1.201 Active virtual MAC address is unknown Local virtual MAC address is 0000.0C07.AC19 (v1 default) Hello time 3 sec, hold time 10 sec Next hello sent in 1.180 secs Preemption disabled Active router is unknown Standby router is unknown Priority 100 (default 100) Group name is hsrp-Vl1-25 (default)

25 = 0001 1001 0001 = 1 1001 = 9 by adding both numbers togehter we will get 19.

The IP address and the corresponding MAC address of the virtual router are maintained in the ARP table of the active router in an HSRP group. The HSRP MAC address is in the following format: 0000.0c07.acXX, where XX is the HSRP group number converted from decimal to hexadecimal. Clients utilize this MAC address to forward data. R2(config)# interface ethernet 0/1 R2(config-if)# ip address 192.168.1.2 255.255.255.0 R2(config-if)# standby 1 ip 192.168.1.1 R1# show ip arp Protocol Address Age (min) Hardware Addr Type Interface Internet 192.168.1.1 - 0000.0c07.ac01 ARPA Ethernet0/1 Internet 192.168.1.2 - aabb.cc01.ba10 ARPA Ethernet0/1 Internet 192.168.1.3 50 aabb.cc01.bb10 ARPA Ethernet0/1 Internet 192.168.2.1 - aabb.cc01.ba00 ARPA Ethernet0/0 Internet 192.168.2.2 51 aabb.cc01.bc00 ARPA Ethernet0/0

D is correct

D is corretc 19 in hex is 25 Regards

https://www.rapidtables.com/convert/number/hex-to-decimal.html (19)₁₆ = (1 × 16¹) + (9 × 16⁰) = (25)₁₀

same, going with D

The correct answer is D