156-816.61 · Question #22
Consider the following scenario: A hub connects four hosts a VLAN-Tagged port on a switch. The hosts have IP addresses ranging from 10.0.0.1 to 10.0.0.4. The switch adds a VLAN Tag of 400 to all…
The correct answer is E. eth3.400. In Check Point SmartView Tracker, VLAN-tagged interfaces are displayed using the format <physical_interface>.<VLAN_ID> - since traffic arrives on eth3 with a VLAN tag of 400, it appears as eth3.400. The source host identity (second host on the hub, i.e., 10.0.0.2) has no…
Question
Consider the following scenario: A hub connects four hosts a VLAN-Tagged port on a switch. The hosts have IP addresses ranging from 10.0.0.1 to 10.0.0.4. The switch adds a VLAN Tag of 400 to all communication passing through it. Once communication from the second host on the hub passes through the switch port on the way to its destination on the external network, how does the traffic appear in SmartView Tracker? Assume that traffic enters the Gateway on interface eth3.
Options
- Aeth3.2.400
- Beth3.402
- Ceth3.400.2
- Deth3.2
- Eeth3.400
How the community answered
(24 responses)- A4% (1)
- C8% (2)
- D8% (2)
- E79% (19)
Explanation
In Check Point SmartView Tracker, VLAN-tagged interfaces are displayed using the format <physical_interface>.<VLAN_ID> - since traffic arrives on eth3 with a VLAN tag of 400, it appears as eth3.400. The source host identity (second host on the hub, i.e., 10.0.0.2) has no bearing on interface naming in SmartView Tracker, which is why D (eth3.2) is wrong - it drops the VLAN tag entirely and incorrectly substitutes the host's position. A (eth3.2.400) and C (eth3.400.2) are wrong because they erroneously inject the host number (2) into the interface name - VLAN sub-interfaces do not encode source host information. B (eth3.402) is a distractor that appears to arithmetically combine 400 + 2 = 402, which has no basis in how Check Point names VLAN interfaces.
Memory tip: Think of the format as eth<port>.<VLAN> - only two components, period-separated. The VLAN tag is the only qualifier; host numbers never appear in interface names.
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