1 High end switches have a feature which does the samething called port mirroring.By the early 2000s, there was little price difference between a hub and a low-endswitch.Layer 2A network bridge, operating at the data link layer, may interconnect a small numberof devices in a home or the office.
If all 435 members of the House of Representatives votes, then at least 290 must vote to override. If all 100 Senate members vote, then at least 67 must vote for the veto. A two-thirds vote is technically considered a supermajority, which is much more difficult to get than a traditional simple majority. Fewer than 10 percent of all presidential vetoes have been overridden by a vote in the chambers of Congress.
Best Answer: There are quorum rules for both House and Senate which require 2/3 of both to be present before business can be conducted. And besides, the Constitution requires 2/3 of the whole membership to override a veto. That means it takes a minimum of 67 Senators to vote to override. The number is fixed at 2/3 the WHOLE membership, not 2/3 of the members present. That's a high threshold to meet. Since 1789 there have been a grand total of 1173 presidential vetoes and only 106 successful overrides.